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.
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Ask The Experts - Is this gold?
September 2017
The Reason We Fight
July 2015
Joy was written on his face, holding up the nugget—his first ever nugget—that he and his grandpa dug up together.
Joy was written on his face, holding up the nugget—his first ever nugget—that he and his grandpa dug up together.
The Bawl Mill
December 2006
• Caught on camera...
• Taxpayers can’t go “cold turkey”
• Hurricane FEMA wipes out 1,800 homes
• Caught on camera...
• Taxpayers can’t go “cold turkey”
• Hurricane FEMA wipes out 1,800 homes
Death Valley Find is Apparent Hoax
March 1999
Jerry Freeman became an instant celebrity in January by announcing the discovery of a 149-year-old trunk belonging to a band of Gold Rush settlers he's obsessively researched for more than a decade.
Jerry Freeman became an instant celebrity in January by announcing the discovery of a 149-year-old trunk belonging to a band of Gold Rush settlers he's obsessively researched for more than a decade.
Detecting the Swiftshore Mine
January 2010
Our group of six met in Foresthill, California, in mid-November. The weather was crisp, but not too cold. We had planned this trip on short notice and were all eager for the adventure ahead.
Our group of six met in Foresthill, California, in mid-November. The weather was crisp, but not too cold. We had planned this trip on short notice and were all eager for the adventure ahead.
The Old Dutch Cleanser Mine
January 2003
The naturally occurring white scouring powder called Old Dutch Cleanser, originally from Kern County, California, is a household helper known throughout America. As a sink, stove, and tub cleaner, the abrasive pumicite is one of...
The naturally occurring white scouring powder called Old Dutch Cleanser, originally from Kern County, California, is a household helper known throughout America. As a sink, stove, and tub cleaner, the abrasive pumicite is one of...
Legislative and Regulatory Update
November 2013
• Comment deadlines approaching for frog listings and habitat
• EPA seeks more control
• Comments due in Washington
• California dredging moratorium
• PLF sues to delist polar bear
• Comment deadlines approaching for frog listings and habitat
• EPA seeks more control
• Comments due in Washington
• California dredging moratorium
• PLF sues to delist polar bear
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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
