Mutiny Gold raises $9.7m for Gullewa acquisition

Mutiny Gold (ASX: MYG) has completed a heavily oversubscribed A$9.7 millionla cal en el beneficio de los minerales capital raising which will accelerate drilling at the highly prospective Deflector Gold Deposit. Funds will also be allocated to make the next $4 million instalment for the Gullewa Project acquisition.

Mutiny placed 101 million shares at $0.096, together with one free attaching option for every two shares subscribed for exercisable at $0.14 by November 2013. The company said the decision to proceed with the capital raising comes on the back of recent, highly encouraging exploration success at the Deflector deposit, and the subsequent decision to expand the scale of the Deflector Project. John Greeve, managing director, said “This financing, coming on the back of our announcement that we are proposing to double our annual production rate at Deflector, confirms that Mutiny Gold is serious about its stated intention of becoming a significant, profitable, low cost gold producer in the very near future. "We now look forward to completing the metallurgical testwork, drilling and DFS for Deflector and bringing the project into production in 2012.”...

Ramelius Announces High Grade Results at Wattle Dam

The directors of Ramelius Resources Limited are pleased to prprocesos de triturar un material de una planta de mineralesovide the following update on drilling results at Wattle Dam.

Results for a further six holes have been received from underground drilling of the new down plunge zone at Wattle Dam with high grade gold intercepts shown below:

• WDUD0160 ‐ 8m @ 6.6 g/t Au from 149m down hole


• WDUD0163 ‐ 9m @ 5.4g/t Au from 160m down hole


• WDUD0165 ‐ 9m @ 3.3 g/t Au from 162m down hole


• WDUD0167*‐ 19m @ 86 g/t Au from 129m down hole including individual one metre intersections of 1500 g/t (48 oz/t) Au and 106g/t (3.4 oz/t) Au


• WDUD0168*‐ 17m @ 15.4 g/t Au from 175m down hole including individual one metre intersections of 37 g/t Au, 20 g/t Au, 25 g/t Au, 19 g/t Au, 95 g/t (3 oz/t) Au and 21 g/t Au

Further drilling of this zone and deeper holes will be conducted once the decline has been extended to the 100m RL, which is expected to take approximately three months.

Panoramic signs farm-in agreement to explore for gold on the Tushtena Project, Alaska

Panoramic Resources Limited is pleased to announce that it has signed a farm-in agreement with Triton Gold Limited and Tushtena Resources Inflow chart of 300 tph trolley mounted crusherc (Tushtena) to explore for high grade gold on the Tushtena Gold Project, Alaska (Tushtena Project).

Panoramic can spend US$2.6 million prior to June 2013 to earn 51% in the project. Panoramic is required to fund the first phase of exploration for a maximum expenditure of US$1.0 million before it can withdraw from the project. Triton will manage the exploration on behalf of Panoramic.

Phase 1 – Exploration

• Maximum expenditure US$1.0 million


• Four diamond holes for 1,600 metres into the Discovery Zone


• Diamond drilling is targeting high grade lode gold mineralisation

Tushtena Gold Project

The Tushtena Project covers an area of 41.4 square kilometres in the 1,200 km long Tintina Gold Belt, which stretches from Northern British Columbia to SW Alaska.

The province is host to world class gold deposits such as Pogo (5 Moz), Fort Knox (7 Moz), and Livengood (6.8 Moz), and remains a prime area for gold exploration.

Nevada Copper Announces Further High Grade Drill Results

Nevada Copper Corp. is pleased to announce further positive drill results at the 100% owned Pumpkin Hollow Property located in Nevada.

The holes reported below reused cement ball mill sale in usapresent the latest results from the geotechnical and North Deposit resource drilling programs. Once the geotechnical drilling is completed the drilling will transition into the recently announced 20,000 meter resource step-out and expansion drilling program.

Assay results from five geotechnical holes have been received; one from the South Deposit, one in the East Deposit, and three in the Decline area. NC10-GT-01 was drilled to collect geotechnical data within the East Deposit. The hole confirmed mineral continuity intersecting 78.5 feet (23.9 meters) averaging 3.17% copper and 0.228 grams of gold.

The geotechnical drilling east of the East Deposit focused on collecting data for engineering the proposed decline to the East and E2 zones. The majority of the drilling was non-mineralized rock above the host units, including NC10GT-02 and NC10GT-04. Hole NC10GT-01 was drilled deeper to collect additional data within development areas. The hole intersected low grade mineralization (< 1% Cu) in the same host as the East Deposit. The hole was drilled 150 meters east of NC10-49 which intersected 35 feet (10.7 meters) averaging 3.0% copper. This area has been targeted for drilling in the 2011 drill program.

In addition to collecting geotechnical data in the open-pittable South Deposit, NC10GT-05 was successful in expanding several deeper mineralized zones to the southeast. The hole intersected multiple zones of mineralization with the largest averaging 0.76% copper over 299.1 feet (91.2 meters), 259.2 feet (79.0 meters) true thickness. This intercept is approximately 70 meters southeast of L-102 (216 feet averaging 0.53% Cu).

NC10-74 completed in the open-pittable North Deposit focused on expanding the recently discovered deep mineralization. While NC10-74 was successful in intersecting several of the lower zones the hole was terminated just above the lowest zones due to hole conditions. The best zone intersected 107.5 feet (32.8 meters), 106.0 feet (32.3 meters) true thickness, averaging 1.26% copper. The last interval in the hole just tagged the top of the lower zones with the last sample interval intersecting 0.86% copper. Continued expansion of the lower zones is planned in the 2011 drill program.

"The mineral resource and geotechnical drilling continue to produce positive results at the Pumpkin Hollow Project. It is apparent that the limits of mineralization continue to expand. The focus of our 2011 drill program will continue to follow up on this open mineralization as well as test additional targets" commented Gregory French, Vice President, Senior Project Manager of Nevada Copper.

Dart Mining nears drilling of previously untested areas at Unicorn molybdenum project

Dart Mining has received Victorian Government approval to begin track constructiquien invento el molino de viento en wikipediaon for planned drilling at its Unicorn molybdenum project.

Importantly, this means the company can begin drilling in areas of the project that until now have been untested. Managing director Lindsay Ward said Dart Mining has worked closely with the Victorian Department of Primary Industries and the Department of Sustainability and Environment to ensure minimal impact on the environment in the design of the proposed work. “The approved work plan allows Dart Mining to construct access tracks off the main ridge line onto the flanks of the outcropping porphyry,” he said. “It provides ideal drill platforms to better test the porphyry and adjacent breccia mineralisation that until now have remained largely undrilled.” The work plan approval process required independent experts to conduct detailed flora and...

Equinox returns to profit

Shares in Equebradora de quijada lubricacionquinox Minerals jumped in early trade on Friday, after the Africa-focussed miner announced a return to profit, with higher copper production and lower costs in the first half of 2010. The Zambia-focussed Equinox said it generated after tax profit of $US105.97 million ($A118.23 million) in the first six months of 2010, compared to a $US99.3 million ($A110.79 million) loss in the comparable period of 2009.

Equinox shares were up 26 cents, or 5.4 per cent, at $5.09, after the results announcement made before market open on today. For the June quarter, the company made a profit of $US73.4 million ($A81.89 million), compared to a loss of $US38.74 million ($A43.22 million) in the prior corresponding period. Equinox's operating profit of $US173.2 million ($A193.24 million) for the first half of 2010 was up 360.8 per cent on the first half of 2009. The operating profit for the three months to June 30 was $US91.1 million ($A101.64 million), up 142 per cent on the equivalent period a year earlier. June quarter cash costs were $1.19 per pound of copper, a record quarterly low for the company...

Rambler Metals & Mining raises further C$4.13 million from Tinma International

Rambler Metals & Mining has conditionally raised an additional C$4.13 million (£2.56 micement production and consumption in ethiopiallion) from its China-based strategic investor.

Tinma International, a wholly owned subsidiary of the Chinese investor, has subscribed for 7.2 million shares in Rambler in addition to the 15.6 million shares, which represents an 11.55 percent stake, it already holds.

The placing price of 58 Canadian cents equals 36 pence per share compared with yesterday’s closing price of 33 pence.

Following the placing, Tinma will hold 22.7 million shares in Rambler, giving it a 16 percent stake in the company and the right to nominate a second member to the board.

The proceeds will be used for general working capital purposes and to repay part of Rambler’s debt.

“We are pleased with the support that Tinma has and will provide in these markets,” said president and CEO of Rambler George Ogilvie.

“They have been actively buying our stock since November 2011 and have provided great support during this transitional period from mine developer to mine producer.

“We appreciate their vote of confidence in the operation and management teams and look forward to furthering our relationship through a successful placement.”

The placing came two weeks after Rambler completed a record gold pour of 1,935 ounces at the Ming gold-copper mine in Canada over a two week period.

Milling throughputs over that period averaged 706 wet metric tonnes per day with an average gold grade of 7.39 grams per ton, the highest continuous throughput and grade seen to date.

During the period the mill also broke its previous daily operating record and achieved a rate of 845 mtpd.

Energy-saving Ball Mill for Iron Ore

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Golf ball mill, a kind of horizontally drum-type rotating device, may be the grate mill with external equipment and double bins. Supplies will be evenly charged through quill shaft in feeding device for the first bin, which includes step or waved lining with steel balls in different specifications. Steel balls are arrived at a certain height by centrifugal force from drum rotation after which fall.

Thus it'll provide a heavy blow to supplies, playing a job of grinding. Materials right after crushed inside the initial bin shall enter bin across single-layer diaphragm towards the second, which can be provided in addition to flat lining with steel baseballs, to go by way of additional milling. Powder shall be discharged by way of discharging grating, ending the milling process.

Ball mill for iron ore

Smashed iron ore is moved by means of belt conveyor to ball generator for grinding, following which, 36% of iron ore is grinded into 200mesh in proportions. Double spiral classifier and cylinder screen are employed to separate big particles via grinded product.

Wet ball mill is typically used in metal ore digesting plant. The choice of ball mill is dependant on ore size, essential output, too as essential ore grade etc.

Iron ore Ball Mill grinds supplies by rotating a cylinder as well as steel grinding balls, resulting in the balls to fall back for the cylinder and onto the material to turn out to be ground. The Iron ore ball mill rotation is generally between four to 20 revolutions every minute, based upon the diameter in the Iron ore ball mill. The larger the diameter is, the decreased the rotation. When the peripheral speed from the Iron ore ball mill is really too great, Iron ore ball mill begins to do something being a centrifuge and also the balls do not fall back, but remain about the perimeter with the mill. The stage where the iron ore ball mill turns into a centrifuge is recognized as the "Critical Speed", and Iron ore ball generators typically operate at 65% to 75% from your crucial speed.

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U.S. extends uranium moratorium for 6 months

The federal government on Mondayball mill free model download loesche extended for six months a moratorium on new uranium mining claims in a million-acre buffer zone around the Grand Canyon as it awaits the conclusions of a study of potential environmental harm to the region.

Interior Secretary Ken Salazar said that expanded uranium mining around the canyon could threaten water supplies, air quality, wildlife, desert vegetation and priceless scenery. Once lost, he said, those assets can never be reclaimed. But he said he was not yet ready to declare the area off limits to new mining claims for the next 20 years, as many local and state officials and environmental advocates have demanded. He said in a briefing at the Grand Canyon that a 20-year moratorium was his preferred solution but that more scientific study was needed. The decision represents at least a partial victory for environmentalists, who have grown increasingly uneasy in recent months as the Obama administration has, in their view, seemed to retreat on several environmental and regulatory fronts...

Stonegate provides update on Mantaro Phosphate Project in Peru

Stonegate Agricom, which is developing phosphate deposits in Idaho, USA and Peru, is pleased to provide an update on recent progress made towards allowable wastage of all building materialsobtaining exploration permits at its Mantaro Phosphate Project in Peru.

After completing a Category 1 exploration drilling program in the second quarter of 2011, Stonegate applied for a more extensive Category 2 exploration permit in order to obtain a better understanding of the size, grade and positioning of the deposit prior to completing a pre-feasibility study. The Company was notified on February 10, 2012 of the February 8, 2012 approval by the Peruvian Ministry of Energy and Mines of the semi-detailed Environmental Impact Assessment (EIA) related to the Category 2 exploration program. This was an essential step in completing the requirements to commence the exploration program. The next important step in the process is to obtain community approval. The Company is continuing to work with the local communities and relevant authorities to obtain all necessary permits and approvals. The Category 2 permit will allow exploration activities within specific non-metallic concessions. The planned program consists of two activities: approximately 18,000 metres of...

Spitfire boosts near surface manganese mineralisation in East Pilbara

Spitfire Resources has boosted near surface manganese mineralisation after intersecting large intervals procesing plant manganese miningof logged manganese at the company’s Contact discovery within the South Woodie Woodie Project in Western Australia. The company has completed 31 of 33 reverse circulation drill holes in a current drill program of up to 10,000 metres to test potential for immediate extensions to the east and north of the manganese mineralisation.

Spitfire said a second thicker zone discovered with down-hole intersections of up to 75 metres in total of visually logged manganese mineralisation. Initial drilling focused immediately east of the previously reported intercepts at Contact of; 17 metres at 16.81% manganese. Spitfire plans to conduct infill drilling on 50 metre by 50 metre spacings within the mineralisation area with a view to generating sufficient data to give foundation to an initial JORC Resource estimate...

IAMGOLD Reports 223% Increase in Second Quarter Net Earnings

IAMGOLD Corporation today reported its unaudited consolidated financial and operating results for the second quarter ended June 30, 2011

Net earnings attributable to equity shareholders were $478.9 million ($1.28 per share) in the quarter, including the gain of $402.6 million from the sale of the Tarkwa and Damang mines. Adjusted net earnings from continuing operations attributable to equity shareholders(1), which excludes the Tarkwa and Damang mines as well as the Mupane mine reclassified as a discontinued operation, were $69.7 million ($0.19 per share) compared to $19.3 million ($0.05 per share) in the second quarter of 2010.

"Overall, our second quarter results demonstrate solid progress in executing our strategy to maximize the value of the mines we own and operate", said Steve Letwin, IAMGOLD's President and CEO. "In January, we said our plan was to divest our minority interest in the Tarkwa and Damang mines for proceeds in excess of $600 million and by the end of June we had closed the sale for gross proceeds of $667 million. During that period, we also confirmed a near 700% increase in mineral resources at our niobium mine and increased our dividend by 150%."

Mr. Letwin further commented, "In a rising gold price environment we were able to achieve, on a year-to-date basis, a 34% expansion in our gold margins(2), despite a 16% year-over-year increase in cash costs. Operationally the quarter was a challenging one. Cash costs(2) increased from the first quarter mainly due to lower production at Essakane, the result of a short term water shortage that has been permanently rectified. We also had higher labour, energy and raw material costs, which are rising across the industry, and higher royalties commensurate with increasing golyacimientos de bauxita en chiled prices. All eyes are on containing costs throughout our operations and we are working on several initiatives to drive them down in the ensuing quarters."

Second Quarter 2011 Highlights

- Revenues from continuing operations increased by 75% to $345.7 million
from $198.1 million in the second quarter of 2010.

- Net earnings from continuing operations attributable to equity
shareholders increased by 223% to $74.5 million ($0.20 per share) from
$23.1 million ($0.06 per share) in the second quarter of 2010.

- Adjusted net earnings from continuing operations attributable to equity
shareholders(1) (excluding Tarkwa, Damang and Mupane mines) increased by
261% to $69.7 million ($0.19 per share) from $19.3 million ($0.05 per
share) in the second quarter of 2010.

- Gold margin(2) increased by 35% from $607 per ounce during the second
quarter of 2010 compared to $818 per ounce during the second quarter of
2011 as price increases more than offset the increases in costs.

- Net earnings attributable to equity shareholders of $478.9 million
($1.28 per share) included a gain of $402.6 million from the sale of
Tarkwa and Damang.

- Adjusted operating cash flow(1) from continuing operations of $149.2
million ($0.40 per share(1)) increased by 81% compared to $82.6 million
($0.22 per share(1)) in the second quarter of 2010.

- Proceeds of $667.0 million cash from the sale of IAMGOLD's 18.9%
interest in the Tarkwa and Damang gold mines in Ghana, West Africa to
Gold Fields Limited.

- Financial position with cash, cash equivalents and gold bullion (at
market) increased by $0.6 billion during the second quarter of 2011 to
$1.2 billion at June 30, 2011. The increase was mainly driven by the
proceeds of $667.0 million received from the disposal of IAMGOLD's
investment in Tarkwa and Damang.

- Completion of an independent technical report confirming a near 700%
increase in Niobec's measured and indicated niobium resources to over
1.9 billion kilograms of contained niobium pentoxide, and an after-tax
net asset value in the range of up to $2.0 billion.

- Mupane mine reclassified as a discontinued operation and an agreement to
divest from the mine has been signed with a purchaser in early August.
The transaction is expected to close shortly.

- On June 21, 2011, IAMGOLD announced an increased semi-annual dividend
payment in the amount of $0.10 per share, representing a 150% increase
in the annual dividend. The $37.5 million dividend was paid on July 20,
2011.

Production, Cash Costs and Gold Margin

Gold Operations

- Attributable gold production of 188,000 ounces from continuing
operations was up 60,000 ounces, or 47%, from 128,000 ounces in the
second quarter of 2010. This was mainly due to Essakane which did not
commence production until the third quarter of 2010, and produced 62,000
attributable ounces in the second quarter of 2011. In addition,
production was slightly higher at Rosebel due to improved recoveries
resulting from the construction of additional CIL tanks in 2010. These
increases were partly offset by the mining of lower grade ore stacked at
Yatela in prior periods. Total attributable gold production including
discontinued operations was 198,000 ounces (190,000 ounces in the second
quarter of 2010).

- Weighted average cash cost from continuing operations(2) of $697 per
ounce compared to $593 per ounce in the second quarter of 2010 due to a
number of factors. As gold price increased, the sites maximized their
margins by mining lower grades which increased cash costs. In addition,
the industry continued to be impacted by the rising costs of fuel,
labour and raw materials. Higher oil prices led to higher haulage and
power generation costs. In addition, royalties increased by $22 per
ounce with the increase in gold prices.

- Gold margin per ounce(2) increased from $607 in the second quarter of
2010 to $818 in the second quarter of 2011 as price increases more than
offset the increases in costs.

Niobec Mine

- Niobium production of 1.1 million kilograms, similar to production in
the second quarter of 2010, and a $14 per kilogram operating margin(2)
compared to $19 per kilogram in the second quarter of 2010. Mainly due
to the inclusion of the paste backfill process, a stronger Canadian
dollar and higher prices and volumes of aluminum used in processing.

- Completion of an independent technical report confirming IAMGOLD's
niobium mine potential with a near 700% increase in measured and
indicated mineral resources and an estimated after-tax net asset value
of up to $2.0 billion.

Review of Second Quarter 2011 Results

Results from discontinued operations (Mupane, Tarkwa and Damang mines) and the gain on disposal of Tarkwa and Damang mines are presented separately as net earnings from discontinued operations in the consolidated statement of earnings, and comparative periods have been adjusted accordingly.

Financial Performance

Revenues from continuing operations in the second quarter of 2011 was $345.7 million, a 75% increase from $198.1 million in the second quarter of 2010, primarily due to the addition of production from the Essakane mine and higher gold prices. For IAMGOLD's continuing operations and joint ventures, the number of ounces of gold sold increased by 47% while the average realized gold price rose by 26% compared to the second quarter of 2010.

In the second quarter of 2011, net earnings from continuing operations attributable to equity shareholders increased by 223% to $74.5 million ($0.20 per share), compared to $23.1 million ($0.06 per share) in the second quarter of 2010.

Adjusted net earnings from continuing operations(1) attributable to equity shareholders of $69.7 million ($0.19 per share) increased by 261% compared to $19.3 million ($0.05 per share) in the second quarter of 2010.

Adjusted operating cash flow from continuing operations(1) of $149.2 million ($0.40 per share(1)) increased by 81% compared to $82.6 million ($0.22 per share(1)) in the second quarter of 2010. The increase is mainly due to the impact of higher production from continuing operations and higher per ounce gold margin.

Financial Position

Cash, cash equivalents and gold bullion (at market value) has improved with $1.2 billion as at June 30, 2011, compared to $0.4 billion at the end of 2010. During the second quarter of 2011, cash and cash equivalents increased mainly due to the proceeds received from the sale of the Company's minority interest in the Tarkwa and Damang mines ($667.0 million). In the first quarter of 2011, the Company issued 1.7 million flow-through shares at a price of C$25.48 per share with gross proceeds of $43.3 million to fund prescribed resource expenditures on the Westwood project. The Company also received $48.8 million in the first quarter of 2011 for the disposal of the La Arena project in Peru.

The above proceeds were partially offset by capital expenditures in mining assets and exploration, resulting in a $776.7 million increase in cash and cash equivalents during the first six months of 2011.

As at June 30, 2011, $350.0 million of unused credit remained available under the Company's credit facility. In addition, the Company had used $18.8 million from the $50.0 million revolving facility for the issuance of letters of credit.

Rosebel Mine, Suriname

Attributable gold production at the Rosebel mine was 87,000 ounces, up 7% from the second quarter of 2010. This was mainly due to improved gold recoveries resulting from the leaching circuit expanded in late 2010. However, lesser access to high grade materials during the rainy season resulted in production being lower than the previous three quarters. Compared to the first quarter of 2011, production declined 13% due to a change in mining sequence.

The site faced cost pressures during the quarter as higher oil prices increased the cost of hauling and thermal power. Labour costs were higher year-over-year due to inflationary factors in the Surinamese economy and royalties increased with rising gold prices, partly offset by the devaluation of the Surinamese dollar.

Expansion

At Rosebel, expansion is focused on optimization of the open pit mine. The feasibility study to expand plant capacity is progressing as planned. Without expansion, mill throughput would decline going forward as the ore mix trends to higher proportions of hard rock. The cost of the staged expansion is expected to total an additional $185 million over the next seven years versus the no-expansion case with sustaining and replacement capital only. Additional grinding capacity will allow mill throughput to be maintained between 12 and 14 million tonnes per year, even with the increased hard rock volumes. Coupled with additional mining equipment, this will increase annual mining capacity to 70 million tonnes to optimize mill feed grades. The expansion essentially brings gold production forward in time and reduces long-term fixed costs by reducing the currently planned mine life.

In May 2011, the Company reached a framework agreement with the Government of Suriname to support a substantial capacity increase at the Rosebel gold mine. The Framework is centered on IAMGOLD's increased investment in brownfield and other near plant resource development, infrastructure and energy.

Essakane Mine, Burkina Faso

Attributable production during the second quarter of 2011 was 62,000 ounces, compared to 95,000 ounces during the first quarter of 2011 mostly due to the impact of an extended crusher repair and a brief water shortage before the beginning of the rainy season. The crusher repair has been completed and has now ramped up to normal production levels. The arrival of the rainy season has filled the water reservoirs and the site is well into a capital program to build an additional bulk water storage facility to add approximately 50% more storage capacity for the coming year as well as doubling the pumping capacity between the water capture point and the water storage reservoirs. This expansion is expected to be completed this year and in time to fill with 2011 rainfall.

Cash costs(2) in the second quarter were higher compared to the first quarter of 2011 mainly due to lower production. In addition, cash costs increased due to higher energy prices, upward pressure on consumable prices and higher royalties due to higher gold prices.

Expansion

A feasibility study to expand the mine is currently in progress and is expected to be completed in the third quarter of 2011. The current mine plan includes processing soft rock for the first three years at a rate of 9.0 million tonnes per year starting in 2011, followed by approximately nine years of processing hard rock. The study is expected to demonstrate that the hard rock capacity of the mine could be expanded to process approximately 10.8 million tonnes per year, compared to the current estimate of 5.4 million tonnes per year. The expectation is for life-of-mine average annual gold production of between 450,000 and 470,000 ounces (on a 100% basis), compared to the current estimate of 315,000 ounces. Assuming a positive outcome of the study, construction could commence in the fourth quarter of 2011.

Doyon Division, Canada

As a cost savings initiative, the ore mined from Mouska has been stockpiled and will be batch processed later in 2011.

Sadiola mine, Mali

Attributable gold production of 33,000 ounces for the second quarter of 2011 was 14% higher than the second quarter of 2010 as a result of higher throughput.

Cash costs(2) rose during the second quarter by 11% year-over-year primarily due to higher costs of energy and consumables and higher labour costs attributed to a revised mining contract finalized in the fourth quarter of 2010. Royalties were up 23% due to higher realized gold prices.

Sadiola distributed a $12 million dividend to IAMGOLD during the quarter (2010 IAMGOLD's share $25.0 million).

Expansion

The feasibility study on the sulphide project to expand the processing facility to process hard rock in conjunction with soft rock was completed in 2010 and a construction decision is expected during 2011.

IAMGOLD took the lead in this work with an innovative approach to reduce cost and re-engineer the construction schedule. The potential to add more resources and reserves to the sulphide deposit as well as to the other satellite deposits remains encouraging and will be pursued in 2011.

Yatela mine, Mali

Attributable gold production of 6,000 ounces during the second quarter of 2011 was down from 15,000 ounces in the second quarter of 2010 due to the mining of lower gold stacked in prior periods. After the completion of mining the bottom of the main pit in early 2010, mine production has shifted to a longer-haul satellite pit, which resulted in lower grades and higher waste stripping.

Cash costs(2) during the current quarter were significantly higher than the same period in 2010 due to production being less than half of what it was in the prior year. In addition, the site faced similar cost pressures as Sadiola.

Yatela did not distribute a dividend during the second quarter of 2011 (2010 - $64.8 million, IAMGOLD's share $25.9 million).

Mupane mine, Botswana

At the end of the second quarter of 2011, IAMGOLD confirmed its plans to divest from the Mupane mine, located in Botswana. An agreement has been signed in early August to divest from the mine. Accordingly, the Mupane mine is presented as an asset held for sale and Mupane's financial results are now reported under net earnings from discontinued operations in the consolidated statement of earnings.

Attributable Gold Sales Volume and Realized Gold Price

Critical problems involved within the mining of kaolin

Kaolin is a soft, white plastic clay consisting mainly of the mineral kaolinite which is a hydrated aluminum silicate Al2 Si2 O5 (OH)4

It is formed by the alteration of feldspar and muscovite. Kaolin deposits are called either main or secondary. Principal kaolins outcome from residual weathering or hydrothermal alteration and secondary kaolins are sedimentary in origin. Kaolin is surely an important industrial mineral, which can be used in a lot of industrial applications.

Three kaolin production areas dominate the planet markets. These are the basic sedimentary kaolins in Georgia and Structured inside the United states of america; the primary kaolins inside the Cornwall location of Southwestern England; and the sedimentary kaolins within the lower Amazon basin in Brazil. These kaolins are of top quality in that they have high brightness and comparatively low viscosity at high solids concentration (70%). This implies that they are able to be used for paper coating which can be the largest application. Other kaolin deposits, which are regionally critical, are located in Australia, Argentina, Czech Republic, China, France, Germany, Indonesia, Iran, Mexico, Mexico, Spain, Turkey, and Ukraine. The physical and chemical propertiweathering and erosion of rocks and mineralses of kaolin has led to it=s extensive use as filler, extender, paper coater, ceramic raw material, pigment, and in addition it truly is an important raw material for that refractory, catalyst, cement, and fiber glass industries.

As shown the biggest industry for kaolin is paper coating. Kaolin is uniquely fitted to this use simply because of its fine particle size, platy particles, very good viscosity, low abrasion, great opacity, white color, high brightness, and very good print top quality. Several grades which differ in brightness and particle size are obtainable towards the paper coater. Prices (FOB) vary from 4 to eight cents per pound. An analysis of your sheet of paper in the National Geographic magazine would show that around 35% with the weight would be kaolin.

A major useful item made from the US kaolin industry is calcined kaolin. Calcined kaolins have a high brightness and opacity and therefore are used to extend titanium dioxide which is high-priced ($1.00 per lb.). Titanium dioxide can be a prime pigment with exceptionally high brightness and opacity. Calcined kaolin can replace as much as 60% T O in paper coating and filling formulations and also in paint formulations with no any significant decrease in brightness and opacity. Calcined kaolins are created by heating spray dried fine particle kaolins to temperatures in the range of 1,000 C. The kaolinite becomes anhydrous and transformed to mullite ( Al2 Si2 O5 ) and Si O2

The price of calcined kaolin items range from 15 cents to 25 cents per pound. The main competitive mineral is calcium carbonate, which includes produced serious inroads in paper filling. Even so kaolin nevertheless dominates the paper coating marketplace. Kaolin is a superb ceramic raw material and is actually a necessary ingredient in many white ware and sanitary ware applications because it fires white, is plastic, and has excellent shrinkage and strength properties.

Over 400,000,000 tons of kaolin may be developed from your deposits in Georgia in the USA. Within the following couple of years the kaolin production in Georgia will probably be downsized because of the depletion of reserves. The same is true in England but thankfully you can find a number of hundred million plenty of top quality kaolin reserves in Brazil, which will turn out to be the globe production leader on this century.

Critical problems involved within the mining of kaolin varies using the geographic place in the deposits. Significant issues in mining the kaolin in Southwestern England will be the disposal from the waste made within the processing and also the disposal from the 80 to 85% from the host rock that the kaolin is extracted by hydraulic methods. An additional issue may be the depth from the ore body as mining progresses since these deposits are funnel shaped and turn into smaller in circumference with depth. Yet another concern together with the English kaolins is their fairly high viscosity in contrast together with the Georgia and Brazil sedimentary kaolins. Because the paper coating machines run faster as a way to create much more coated paper to improve productivity, the viscosity becomes more vital.

In Georgia, most of the reduced overburden kaolins happen to be mined. This signifies that as the overburden ratio increases, the price of mining increases. An additional critical issue is that the availability of top quality, low viscosity kaolins are quickly disappearing so the sector should devise methods to improve the viscosity to be able to use marginal reserves of high viscosity kaolins.

In Brazil, a severe problem may be the heavy rains, which flood the mines for the duration of the rainy season. Even the remoteness of the mines from population centers creates issues in labor and management turnover.

Kaolin is definitely an environmentally protected material with no adverse wellness problems provided that the fine particle dust is controlled. Outside pit mines in Georgia and Brazil are reclaimed, so that the land may be used for agriculture, forestry, or recreational projects. Kaolin specifically that that is used for coating paper is traded inside a global marketplace. Kaolin that is used for ceramics and fillers is typically restricted to regional or local markets. The paper coating kaolins are made by massive international businesses but the ceramic and filler grade kaolins are created by smaller businesses who employ neighborhood marginalized men and women who're determined by them for his or her livelihood. Kaolins are currently and in the future a sizable contributor towards the economic climate of developing countries such as Brazil, Argentina, Tanzania, Indonesia, Suriname, and India. Paper is really a quite necessary commodity so when a country develops, a lot more kaolin will likely be required to improve the printability with the paper especially for color printing. China can be a good example where Fifteen years ago there was no paper produced in China that may be used for printing in color. Nowadays China is the 3rd biggest producer of paper and large quantities of kaolin are imported to generate top quality coated paper for internal consumption.

Bentonite

Bentonite is actually a smectite clay formed in the improvement in siliceous, glass-rich volcanic rocks including tuffs and ash deposits. The main mineral in bentonite is montmorillonite, a hydrated sodium, calcium, magnesium, aluminum silicate. The sodium, calcium, and magnesium cations are interchangeable giving the montmorillonite a higher ion exchange capacity. The economic bentonites are normally either the sodium or calcium assortment. Bentonites are critical and crucial within a great deal of markets which includes drilling mud, foundry sand binding, iron ore pelletizing, pet waste absorbents, and civil engineering makes use of including waterproofing and sealing. Bentonites have exceptional rheological and absorbent properties. Sodium bentonite has a high swelling capacity, and forms gel-like masses when put into water. Calcium bentonite features a much lower swelling capacity than sodium bentonite but this might be improved by treatment with soda ash to generate sodiumexchanged bentonite. Usually these sodium exchanged bentonites do not have as high swelling capacity because the natural sodium bentonites.

The biggest sodium bentonite deposits are located in the Western United states of america in Wyoming, Montana, and South dakota. These sodium bentonites are also referred to as Western or Wyoming bentonite which indicates a higher swelling sodium bentonite. Other smaller sodium bentonite deposits take place in Argentina, Canada, China, Greece, Georgia Republic, India, Morocco, Nigeria, and Spain. Calcium bentonite deposits are a lot more typical than sodium bentonite ones. In the United states of america calcium bentonites happen in Georgia, Alabama, Mississippi, Texas, Illinois, and Missouri. Elsewhere calcium bentonites occur in England, Germany, Spain, Italy, Greece, Turkey, Georgia Republic, Czech Republic, Ukraine, Japan, Algeria, Morocco, South Africa, China, India, Japan, Argentina, and Brazil.

The major makes use of of palygorskite and sepiolite, are in drilling muds, paints, liquid detergents, adhesives, auto polish, flexiographic inks, cosmetics, floor absorbents, potting mixes, oil-spill tidy up material, carriers for fertilizers, pesticides, or hazardous chemicals, decolorize various mineral, vegetable and animal oils, like a receptor coating on carbonless copy paper, as well as for pet litter. Simply because these clays are comparatively unaffected by electrolytes their viscosity is retained whereas bentonites flocculate and lose their high viscosity. Both palygorskite and sepiolite are used being a binder for pelletized animal feed. Particular research have reported elevated feed efficiency and enhanced digestive hygiene. One more use is as a possible additive in cement exactly where because of their elongate shape and absorbency it strengthens the resulting concrete. The costs per ton vary from $90 to as considerably as $800 for really fine very refined material.

Palygorskite and sepiolite are surface mined in open pits, related to bentonite. The processing entails crushing, drying, pulverization, classifying, bagging and loading. Palygorskite and sepiolite are each elongate minerals. Palygorskite and sepiolite are each elongate minerals, which have caused some wellness organizations concern due to the fact with the problems with asbestos, which can be an elongate mineral. Nevertheless, many tests show that neither of these minerals are carcinogens. Once again these clays are environmentally safe so long as dust abatement procedures are taken. Outside pits are reclaimed to their original conformation to ensure that crops or trees may be grown and harvested. Palygorskite and sepiolite, particularly these considered gel clays, are traded inside a international marketplace. Absorbent grades are made and used in regional and nearby markets. No big multinational business is involved within the production of those clays. Palygorskite made in Senegal, Turkey, China, and Somalia contribute a livelihood for many individuals who're involved within the mining, production, transportation, and marketing of those clays. Palygorskite and sepiolite are outstanding absorbents and so are vital to be used as carriers for fertilizer, insecticides, and pesticides in agricultural applications when blended with bentontite, the information is really a superior barrier clay to use in landfills and toxic waste repositories.

gravity concentrators and separation techniques for gold

Gravity concentration is actually a process to pay attention the mineral of curiosity (in cases like this gold) using the distinction of precise gravity of gold and gangue minerals. The specific gravity of gold is 19.5 along with the precise gravity of quartz (the frequent gangue mineral associated with gold) is two.65 (i.e., gravity concentration functions due to the fact gold is heavy, and quartz is light). Typically gravity separation techniques are mistaken for size classification because massive particles of light minerals can become a little particle of a heavy mineral. Essentially the most successful gravity separation processes occurcolumnar basalt crushing concrete aggregate washing when placed on ore particles of concerning the exact same size. Essentially the most important factor to get a productive gravity separation is liberation in the gold particles from the gangue minerals. It's not simple to establish the degree of liberation of low-grade minerals such as gold. Classical microscopy of screened fractions to ascertain mineral liberation is unreliable with gold ores. Probably the most recommended method to ascertain the optimum gold liberation dimension is grinding for diverse times (or grain size distributions) and applying gravity concentration towards the ground goods. This really is a classical and crucial process to suggest any kind of gravity concentration process. Simply because most artisanal miners don't classify (screen) the crushed/ground material (i.e. they perform in open circuit), their chances to enhance gold recovery are extremely restricted.

The principal advantages of gravity concentrators over gold cyanidation are:

• relatively straightforward items of equipment (low capital and operating fees)

• small or no reagent required

• performs equally effectively with reasonably coarse particles and fine grained materials

Calculating recovery and concentrate grade

There are two primary variables of high importance in mineral processing: recovery and concentrate grade. They may be often "enemies", i.e. when you have high gold recovery, the gold grade in the concentrate is low. This can be simple to understand. In case you are concentrating a ore with 10 grams of gold per tonne of ore and you've got a concentrate with a large weight, the recovery is most likely high, but you almost certainly the grade is close to ten g Au/tonne…in other words you didn't concentrate an excessive amount of gold. In opposite, in case you have virtually pure gold in your concentrate you lost a great deal of gold inside the process along with the recovery may possibly be low. Then your trick will be to uncover a process and a condition (time, equipment, etc.) where the gold recovery is excellent and also the grade with the conctrate can be acceptable.

Observe Fig. four.1 that is a hypothetical example of a gold ore. If the mass of concentrate is HIGH, the gold recovery is HIGH but the concentrate grade is LOW. Miners want high recover and a concentrate with practically pure gold.. Of course this is the ideal situation but difficult to be met. Where is the very best reason for this curve? There is not a clear answer for this. Some miners prefer to release the concentrate from your sluice box or centrifuge more often to get high recovery but the grade from the concentrate is low and then they have to spend a lot more time in panning and amalgamating a large amount of concentrate. Other miners prefer to run their sluice boxes for lengthy time (e.g. 1 week) to possess a very rich concentrate however recovery is normally low.

The grade in the concentrate is dependent upon chemical analysis. This can be not very simple and obtainable in many artisanal mining locations. The analysis might be accomplished by "fire-assay" in which a sample of 30 grams in the concentrate is melted at hot temperature with lead, borax and also other chemical compounds. Other analytical process may be the digestion of five to 10 grams of concentrate with "aqua regia" then precipitation of gold from your answer or extraction of gold with kerosene. This can be accompanied by using an atomic absorption spectrometer to learn the concentration of gold inside the solution.

Zenith belt feeder for coal,copper,gold

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SilO diScHarge belt Feeders

ZENITH silo discharge duty belt feeders are mounted from structures above and therefore are placed directly under silos and bins. With the offered functions (normal and optional) these belt feeders are used in demanding silo discharge applications exactly where both compact design and reliable operation can be a necessity. Capacity range for this type of belt feeders goes as much as 1050 m3 /h and maximum feed dimensions are 150 mm.

Receiver belt Feeders The receiver duty belt feeders can obtain material into its hopper either straight from your front finish loaders or using their company materials handling systems which are positioned before the belt feeder in customer's processes. Capacity range for this sort of belt feeders goes as much as 1800 m3 /h and maximum feed dimensions are 150 mm.

ZENITH can be a high-technology engineering group with world-leading positions in selected locations - tools for metal working, advanced supplies technology, and mining and construction. We employ more than 47 000 men and women and so are represented in 130 nations.

ZENITH Mining and Building represents 1 third with the general ZENITH Group and serves an extensive selection of consumers in construction, mineral exploration, mining and bulk materials handling. Our building expertise covers quarrying, tunneling, demolition and recycling, and also other civil engineering applications. Our mining merchandise and services assistance consumers on top and below ground, including coal, copper and gold mining.

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Equity Development bullish on EMED’s Rio Tinto copper mine

Equity hafnium ore mined where in zimbabweDevelopment Research issued a note on EMED Mining , praising its acquisition of the Rio Tinto copper mine in Spain in 2007, which it said was transformational and would soon reap benefits with operational and regulatory progress remaining on schedule, while also noting its Biely Vrch gold project in Slovakia, which is starting to look yet more attractive with the current decline of the euro against the US dollar.

Following the restart of Rio Tinto, the research house projects EMED to make €119.94 million in copper sales revenues in full year 2012, €139.86 million in 2013, which would go up to €208.28 million in the following year. Pre-tax losses are expected to amount to €6.38 million this year and €3.94 million in 2011 and then turn into profits of €50.83 million in 2012, €55.89 million in 2013 and reach €80.11 million in 2014. The prospective price to earnings ratio is projected to be at 1.31, 1.52 and 1.29 in 2012, 2013 and 2014 respectively with Equity Research saying there was...

Rio Tinto Announces New Global Centre for Underground Mine Construction in Canada

Rio Tinto has announced a key strategic partnership in Canada, teaming with world leading researchers to create the Rio Tinto Centre for Underground Mine Construction.

The new Centre will be based at the Centre for Excellence in Mining Innovation (CEMI) in Snothing found for index php categoryudbury, Ontario, and will focus on innovative rapid mine construction and ground control for mining at depth.

Rio Tinto is investing C$10 million over five years in the centre, completing a suite of five global long term Rio Tinto research centres around the world.

The work with CEMI will assist Rio Tinto's development of new excavation systems through The Mine of the Future™ programme, focusing on significantly improving the construction and operation of underground mines.

As part of this programme, Rio Tinto will conduct a full scale performance verification trial in 2012 at Northparkes' copper and gold mine in New South Wales, Australia, as the first of three new underground excavation systems.

Rio Tinto Head of Innovation, John McGagh, said: "In order to satisfy the global demand for minerals we will need to go deeper to access new resources. By partnering with CEMI, Rio Tinto is supporting research into high speed underground mine construction.

"This collaboration is in keeping with our long term commitment to innovation. It's part of our strategy to collect the world's experts and develop mutually beneficial partnerships to develop technologies which address the future requirements of Rio Tinto. Put simply, there is no other mining operation in the world attempting to take the approach that we are on this scale."

CEMI President/CEO Doctor Peter K Kaiser said Rio Tinto's support would enable CEMI to collaborate with recognised researchers on ground control and machine performance issues.

"With test sites, possibly on three continents, it will be of strategic importance to strengthen collaborations with expertise beyond our boundaries," Dr Kaiser said.

"In collaboration with Rio Tinto, CEMI will be able to expand its research and development programmes and increase its global reach."

Rio Tinto General Manager Underground Innovation Dr Fred Delabbio said: "Our partnership with CEMI provides an opportunity to combine experts from the civil and mining industries. The Centre's research into high speed underground mine construction will include implementation of mechanised tunnelling and shaft sinking systems and CEMI will assist in the development of innovative support systems and in minimising the risks for such technologies."

Key areas that CEMI will work on include:

• developing and designing innovative support methods for different excavation systems;


• establishing reliable predictions of rock behaviour to ensure effective construction technologies are selected and utilised;


• advanced rock mass characterisation technologies;


• performance of mechanical rock excavation based systems from an equipment and ground management perspective;


• pillar design and underground excavation stability projects such as rock fracture modelling.

The Centre for Underground Mine Construction is the fifth global long term Rio Tinto research centre:

• The Rio Tinto Centre for Mine Automation - in collaboration with the Australian Centre for Field Robotics at the University of Sydney


• The Rio Tinto Centre for Advanced Mineral Sorting - a partnership with the Julius Kruttschnitt Mineral Research Centre at The University of Queensland


• The Rio Tinto Centre for Materials and Sensing - at Curtin University in Perth


• The Rio Tinto Centre for Advanced Mineral Recovery - in collaboration with the Imperial College in London


• The Rio Tinto Centre for Underground Mine Construction - in collaboration with the Centre for Excellence in Mining Innovation in Canada

MDM is awarded the feasibility study for African Barrick’s Bulyanhulu project

MDM Engineering Group is pleased to announce that it has been awarded the feasibility study for a 2.4 million tonnes per annum CIL gold plantmagnetic separation equipment for iron ore to treat reclaimed tailings and current flotation rougher tailings for African Barrick Gold’s Bulyanhulu Gold Mine in Tanzania.

ABG is the largest gold producer in Tanzania with a portfolio of four operating mines and is the operator and manager of Bulyanhulu Gold Mine, which is wholly owned by Bulyanhulu Gold Mine Limited, a 100% owned subsidiary of ABG.

A concentrator plant has been in operation at Bulyanhulu since commissioning in 2001. During 2010 ABG completed a scoping study to determine the technical and economic viability of reclaiming and processing the stored tailings for recovery of gold.

As a result of these in-house studies ABG now wishes to undertake a FS for a new CIL facility to process tailings reclaimed from the historical tailings at a rate of 1.4 mtpa concurrently with current flotation tailings at a rate of 1 mtpa. The new plant total throughput will thus be 2.4 mtpa.

George Bennett, MDM Executive Director said:
“MDM is thrilled to be working on the Bulyanhulu gold project in Tanzania. MDM will be able to bring the experience of the team’s 35 gold plants designed and built across Africa, including 2 x 650k tpm tailings plants built in the last 3 years. We look forward to a long working relationship with African Barrick Gold.”

Silver Standard: Brucejack Drilling Cuts Bonanza-Grade Gold Mineralization

Silver Standard Resources Inc. is pleased to report the initial results of diamond drilling at its wholly-owned Brucejack Project which continues to encounter the bonanza-grade gold and silver mineralization first identified in the 2009 drill program.

The results to-date demonstrate the consistency of the bonanza grade intersections over a relatively broad area. The Brucejack Project is adjacent to the Company's wholly-owned Snowfield Project.

Galena Hill Zone

A highlight is hole SU-40 from the Galena Hill Zone, which includes three bonanza-grade intercepts of gold and silver mineralization, two of which are interpreted to occur within defined parallel structures. The middle intercept included:

• 0.5 meter with uncut grades of 536 grams of gold and 175 grams of silver per tonne (2 feet averaging 15.63 ounces gold and 5.1 ounces of silver per ton).

This intercept occurs within a structure defined by SU-12, with an intersect of 1.5 meters of 16.95 kilograms of gold and 8.7 kilograms of silver per tonne and SU-29, with an intercept of 0.5 meters of 5.3 kilograms of gold and 3.7 kilograms of silver per tonne. These three intercepts define an area measuring approximately 130 meters east-west in length and 445 meters in depth.

The upper bonanza-grade intercept of SU-40 included:

• 0.5 meter with uncut grades of 430 grams of gold and 174 grams of silver per tonne (2 feet averaging 12.54 ounces of gold and 5.1 ounces of silver per ton).

This intercept is contained within a structure defined by bonanza-grade intercepts from holes SU-05 and SU-12, plus broad intercepts in holes SU-29 and SU-34. SU-05 intersected 1.5 meters of 215.0 grams of gold and 136.0 grams of silver per tonne, and SU-12 intersected 1.2 meters of 77.6 grams of gold and 97.8 grams of silver per tonne.

The area defined by these intercepts is approximately 190 meters east-west in length and 140 meters in depth.

The third bonanza-grade intercept of SU-40 included 1.64 meters with uncut grades of 5.84 kilograms of gold and 720 grams of silver per tonne (5 feet averaging 170.35 ounces of gold and 21.0 ounces of silver per ton).

Until confirmed by underground mining and sampling, it should be assumed that this mineralization forms discrete pods within the structures, which are located less than 500 meters from the historical underground development at the Brucejack Project. The consistency of the bonanza-grade intersections over the relatively broad area is potentially significant and highlights the possibility for additional high-grade mineralization.

Shore Zone

The Shore Zone is located 750 meters north of Galena Hill Zone in a vicinity of new drill targets. A highlight is hole SU-45, which intersected intervals of:

• 18 meters of 4.35 grams of gold and 51.2 grams of silver per tonne (59 feet averaging 0.13 ounces of gold and 1.5 ounces of silver per tonne), including 3 meters with uncut grades of 25.76 grams of gold and 39.9 grams of silver per tonne (10 feet averaging 0.75 ounces of gold and 1.2 ounces of silver per ton), and - 62 meters of 1.69 grams of gold and 42.1 grams of silver per tonne, (203 feet averaging 0.05 ounces of gold and 1.2 ounces of silver per ton), including 25 meters of 3.61 grams of gold and 97.8 grams of silver per tonne (82 feet averaging 0.11 ounces of gold and 2.9 ounces of silver per ton).

SU-45, which ended in mineralization, confirms the down-dip extension of the mineralization in the Shore Zone.

A diamond drill program of 24,000 meters in total is planned for the Brucejack Project this season, and five drills are currently working on various targets.

IAMGOLD Officially Opens its Essakane Mine in Burkina Faso

IAMGOLD Corporation earlier today officially opened its new Essakane gold mine in Burkina Faso (inhow to crush rocks for gold mining West Africa) with a ceremonial pour. The event was attended by senior government officials, including The Honourable Prime Minister Tertius Zongo, IAMGOLD senior management and other stakeholders from across the region.

"Today's ceremony marks an important milestone in IAMGOLD's and Burkina Faso's history. The Essakane gold mine is a cornerstone of IAMGOLD's million-ounce platform for future growth. Among all of IAMGOLD's mines, Essakane is the first project to be advanced from early development stages into a mining operation. It is also the largest private foreign investment to date in Burkina Faso and we are confident that it will provide significant benefits to all stakeholders," said Peter C. Jones, President and Chief Executive Officer.

Mr. Jones emphasized that, "This event is the result of over 20 years of partnership between IAMGOLD and our West African partners and we are honoured to celebrate the occasion with representatives from the government of Burkina Faso and the Burkinabe people in 2010, the 50th year of Burkina Faso's independence. We believe that the start-up of this gold plant is just the beginning for Essakane due to our confidence in the potential to expand the mineral reserves for this 1,283 square kilometre land package."

Essakane is 90% owned by IAMGOLD, with the Government of Burkina Faso holding the remaining 10%. The operation is expected to produce more than 500,000 ounces of gold from start-up through to the end of 2011.

Essakane reached commercial production in mid-July 2010, well ahead of schedule and on budget.