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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.
A Data Miner Builds A Power Sluice
Data mining involves processing huge amounts of digital information to find hidden patterns and financial relationships. To executives, the findings are like gold, but on the weekends, I prefer seeing the real thing in the bottom of my pan.
MCS Index Shows Decrease in Mining Costs
The latest Mining Cost Service (MCS) Cost indexes, released on February 26 by Western Mine Engineering, Inc., display a hint of a silver lining in the cloud hanging over the U.S. Mining Industry.
The Carissa Gold Mine, South Pass, Wyoming—A Sleeper?
The Carissa is part of a patented group of claims (private property) near South Pass City in the southern Wind River Mountains of western Wyoming. The mine lies a short distance southeast of State Highway 28 which runs north to Lander and provides excellent access to the area.
East Coast Dredger Heads West - Part II
I wandered back across the river, wading through the rapids and slipping at least three more times. I couldn’t believe how slick these rocks were! Once on the other side, I sat down for a few moments to review my plan of attack and lick my wounds.
Detector Brings New Life to An Old Lode Mine
…it was immediately evident the previous owner had not been using a detector. During just a few months of working the dumps part-time, he recovered gold in quartz specimens valued in excess of $40,000.
Picks & Pans—Drywashing and Detecting in Southern California
The late George Elwood, of Johannesburg, California, was well known for helping anyone in need. As a matter of fact, I originally met George when he went out of his way to help me with a flat-tire problem.
The Bawl Mill
- “Burglar” makes a clean getaway
- $12 billion per month!
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