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Gold in Gossan
March 2003 by Edgar B. Heylmun, PhD
Gossan is defined as being an iron-bearing capping over a sulfide deposit. It is formed by the oxidation and leaching of sulfide minerals, leaving hydrated iron oxides such as limonite and goethite, along with manganese oxides.
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Legislative and Regulatory Update
February 2002
• Changes to wetlands
• 43 CFR 3809
• Scaled-back version of CARA passes in the dead of night
• Sierra Nevada Framework
• Changes to wetlands
• 43 CFR 3809
• Scaled-back version of CARA passes in the dead of night
• Sierra Nevada Framework
Brighter Days Ahead Reports Nevada Mining Association
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A new report predicts brighter days for mining in Nevada if the price of gold maintains at current levels.
A new report predicts brighter days for mining in Nevada if the price of gold maintains at current levels.
GATA Releases Open Letter to the Press
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It is time to wake up to what has been going on in the gold market. I can understand some initial reticence about grasping what The Gold Anti-Trust Action Committee has been telling you: that the gold market is being manipulated. No one wants to believe that, but enough is enough.
It is time to wake up to what has been going on in the gold market. I can understand some initial reticence about grasping what The Gold Anti-Trust Action Committee has been telling you: that the gold market is being manipulated. No one wants to believe that, but enough is enough.
Picks & Pans: How to Succeed in a Small Mine, A Case History: 1990-2000
May 2001
The first requirement for a successful mine operation is a market for the product, metallic or nonmetallic. The second requirement is to deliver a quality salable product...
The first requirement for a successful mine operation is a market for the product, metallic or nonmetallic. The second requirement is to deliver a quality salable product...
Ask The Experts—Amalgamation
January 2011
Q: Exactly how does amalgamation work? Does it “melt” the gold (or copper, or silver, etc.) and form an alloy? If one leaves a piece of gold in mercury, will the entire sample become an amalgam (combination) of gold and mercury? Or does it only affect the surface...
Q: Exactly how does amalgamation work? Does it “melt” the gold (or copper, or silver, etc.) and form an alloy? If one leaves a piece of gold in mercury, will the entire sample become an amalgam (combination) of gold and mercury? Or does it only affect the surface...
Melman on Gold & Silver
February 2001
Seldom, if ever, have we witnessed as much financial upheaval or as rapid a change in sentiment as we saw in the first two trading days of the year...
Seldom, if ever, have we witnessed as much financial upheaval or as rapid a change in sentiment as we saw in the first two trading days of the year...
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