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Glencore puts copper mines up for sale in bid to slash $30bn debt...
www.independent.co.uk
The ailing mining and trading giant Glencore has intensified efforts to slash its $30bn (£20bn) debt pile by putting copper mines in Australia and ...
Innovations: The Butte Copper Mines
www.copper.org
The Butte Copper Mines. Copper Applications in Mining & Extraction. Anon. In the late 19th century, Montana was the largest producer of copper in the world. However, the mining history of what is now Montana did not begin with copper, but with the discovery of gold. In the mid-1900's, prospectors in the area found gold ...
3 Largest Copper Mines in the World - Mining News Magazine, les...
miningnewsmagazine.org
Copper can be found as a compound in ores such as chalcopyrite, bornite and malachite. It is then extracted through…
Mining in Chile - Copper solution | Business | The Economist
www.economist.com
The mining industry has enriched Chile. But its future is precarious
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