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Greenstone
August 2004 by Edgar B. Heylmun, PhD
Greenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...The Bawl Mill
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• No such thing as a free lunch
• Cold weather interrupts global warming expedition
Company Notes
• Newmont Mining Corp.
• Kinross Gold Corp.
• TVX Gold Corp.
Designing and Evaluating Placer Gold Recovery Plants
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
Ask The Experts: What indicator rocks should I be looking for in northern Nevada?
Q: Can you tell us what the indicator rocks are? I’ve looked at the nearby digs and pushes that were made for gold and it looks like we’re digging on some similar material...
Over the Divide
David N. Skillings, Jr
Bella's Birthday Nugget
...under Oakie Jim’s leadership, Lunker Hill was to become a textbook operation of using handheld very low frequency (VLF) and pulse induction (PI) metal detectors to recover placer gold...
The Bawl Mill
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The Bawl Mill
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• Looking Back
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