All Articles
Prospecting With Color
December 2000 by Edgar B. Heylmun, PhD
Perhaps no one factor has caused more confusion in the search for ore than the attempt to use color as a guide to prospecting. Yet, there is a reason for every color seen in rocks, so it deserves to be noted.
The Bawl Mill
• South Korean ad campaigns make men blush
• A revolting development
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.
Legislative and Regulatory Update
• Salazar pushes wilderness
• California Governor signs AB 120
The Bawl Mill
• Less pork but more fat...
• It all flows downstream...
• Promises, promises...
Mining, Health Care & Taxes
Like it or not, the US Supreme Court has ruled and the so-called “Affordable Care Act” (ACA) is now the law of the land—and the Tax Code. What’s more, despite the promises of many politicians to repeal it, it may be around in some form for years to come.
The Bawl Mill
• Stinks like limburger
• Auditors get audited
• Will you be able to afford to retire?
• The $200,000 crow
The Kern River Gold Rush
The tall grasses of the rolling foothills of eastern Kern County, California, hide traces of what was once a major gold rush.
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The Bawl Mill
• Letter to the Editor
• Potaro District, Guyana
• World Gold Council Launches $3 Million Ad Campaign
• Prospecting for Platinum in Wyoming
• Picks & Pans: More Big River Dredging in Northern California
• Epithermal Ore Deposits Associated With Tertiary Volcanism—And the Feasibility of Metal Detecting for Them
• A Changing Diamond Industry Looks to Canada for Growth
• History of Mining—Bradshaw Mountains, AZ—Part II
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
