All Articles
Breccia Pipes
December 2001 by Edgar B. Heylmun, PhD
A breccia pipe, or chimney, is an irregular cylindrical mass of breccia that is often silicified and stands out as an iron-stained knob. They can be from a few feet to several hundred feet in diameter, and may or may not be mineralized.
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The Rand of South Africa
February 2002
The republic of South Africa (pop. 45 million) lies at the southern end of the African continent, and has been responsible for much of the world’s gold and diamond production. The first Europeans to settle in the region were Dutch, but the British...
The republic of South Africa (pop. 45 million) lies at the southern end of the African continent, and has been responsible for much of the world’s gold and diamond production. The first Europeans to settle in the region were Dutch, but the British...
Ask The Experts - Were there insufficient values to continue mining at this site?
December 2017
Were there insufficient values to continue mining at this site?
Ask The Experts
September 2016
• Is there a standard contract for placer mining to use with a private property owner?
• Is there a standard contract for placer mining to use with a private property owner?
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January 2006
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Picks & Pans: Working the Ol' Paystreak
November 2001
The bright yellow nugget caught my eye as I pulled the astroturf down the sluice box into the large plastic tub. I grabbed it from the mat, pretty much in shock because of its size.
The bright yellow nugget caught my eye as I pulled the astroturf down the sluice box into the large plastic tub. I grabbed it from the mat, pretty much in shock because of its size.
Ex-MarketWatch Mining Promoter Settles Charges
February 2005
Thom Calandra, well known for promoting mining companies and precious metals through CBSMarketWatch.com for the past several years, will pay over $540,000 to settle charges he used his investment newsletter to profit from stocks that he owned.
Thom Calandra, well known for promoting mining companies and precious metals through CBSMarketWatch.com for the past several years, will pay over $540,000 to settle charges he used his investment newsletter to profit from stocks that he owned.
Picks & Pans: Tips for Nuggestshooting—How to Increase Your Gold Finds (Part II)
May 2000
Thus far we have only briefly discussed the methods used by early miners to process auriferous desert gravels. However, old workings can be extremely productive places to search with a metal detector.
Thus far we have only briefly discussed the methods used by early miners to process auriferous desert gravels. However, old workings can be extremely productive places to search with a metal detector.
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