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Large Scale Mining

Canadian Company Recovers 1,111-Carat Diamond

It is the second largest gem-quality diamond in history, after the 3,106-carat “Cullinan Diamond” was recovered in South Africa in 1905.

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The Wild Rush To Find More Cobalt—Part II


In this second part on cobalt, I will take a look at the various types of cobalt deposits and how you can prospect for them. Who knows—perhaps the next big cobalt strike will be yours.

The Basics of Froth Flotation


I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.

Determining The Optimal Crushing Size for Gravity Recovery


It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.

The Batteries Metal Rush


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Mining Returns to Historic Comstock


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Modern Mining Reclamation


A study showed that between 1930 and 1980, only a quarter of one percent of the land in the United States was used in all mining applications combined, including surface mining, tailings disposal, underground mines, and all mineral processing facilities.

Prospecting for Copper Ores—Part I


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