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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.

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Proper Assaying of Placer Samples


The whole purpose of sampling mineralized ground is to measure the values in a small volume of material that would be representative of a much larger volume of similar material. The key word is representative. Chemical and fire assaying will not accurately represent placer deposits by themselves.

Proper Placer Sample Processing


...your sampling procedures should not be designed to catch gold your mining technique will never recover.

Gold in Tertiary Gravels


In some places, semi-continuous sections of riverbed can easily be linked in many places to identify the path of the ancient rivers.

Moore Creek, Alaska—Then and Now


The gold was very chunky and much of it had quartz attached. Even back then I knew that the gold was very close to its source.

Gold Deposits of Montana


Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.

Gold in Guyana—Part I: Porknocking on the Puruni River Road


In part one of this two-part series on gold in Guyana, I describe artisanal mining efforts currently winning alluvial gold from small-scale placer operations located along the lower Puruni River and its tributaries.

Mining Pegmatite Deposits


With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.

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