How To
Company Notes
August 1999 by Staff
• Homestake Mining Company• Placer Dome Inc.
• AZCO Mining Inc.
• Guyana Diamond Corp.
• Canadian Mining Company, Ltd.
• Hecla Mining Company
• Pan American Silver Corp.
Ask the Experts
Questions regarding patented and unpatented mining claims and the legal rights surrounding them.
What To Do When Gold Recovery and Assay Values Differ
Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.
Ask the Experts - proper mining claim procedures
Q: Can you offer any information on proper mining claim procedures?
How to Refine Silver—Pt I
Silver refining has been used from ancient times to change the characteristics of the metal. Early metallurgists refined silver by heating it a couple hundred degrees above its melting point and holding the metal at an elevated temperature for a period of time.
Ask The Experts
• Determining the amount of gold in a specimen
Tips for Detecting Nugget Patches
Small-Scale Hard Rock Mining With Water Recycling
Once I have established the presence of gold in the sample, I collect five-gallon bucket quantities of the rock material for processing back at my shop.
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