Let us help you recover valuable metals. 888-437-1187

Magazine

All Articles

Breccia Pipes

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.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

Legislative and Regulatory Update


• US District Court rules against Oregon miners
• Bill to halt sage grouse management plans introduced.

Looking Back


Excerpts from California Mining Journal, our original title, published 50 years ago this month.

Legislative and Regulatory Update


• Increase in claim fees
• Impact of recent elections
• Current suction gold dredging status in California
• Parks in Southern California

Benches and Fossil Placers


Unfortunately for us mortal humans, we have a poor perspective on geologic time. When we look at a landscape such as a stream valley, we see it only in two, or at the most, three dimensions. We have poor comprehension of the valley’s fourth and most important dimension—time.

Piggin' for Gold


Take a look at the picture—it’s pretty simple and you can build it yourself.

Our Readers Say


• "...the small miner and prospector has lost one of their greatest friends."
• "As a taxpayer, I have to wonder what kind of fantasy land our government regulatory employees and managers live in."
• " ... this 'batty' line of reasoning was ludicrous."

Looking Back


Excerpts from CMJ, our original title, published 50 years ago this month.

Subscription Required:
The Bawl Mill   • Our Readers Say   • 43 CFR 3809 Update   • Newmont Tries to Become World's Largest   • The Final Gold Strike of the Alaska Gold Rush—Livengood Stampede, 1914   • GATA Update   • Aussie Gold—A Look at Queensland   • Montana's Virginia City Has Golden Legacy   • Picks & Pans: Lost Below   • Placer Gemstones   • Gold in Iceland?   • Mining Stock Quotes and Mineral & Metal Prices   • Melman on Gold & Silver

Free:
Legislative and Regulatory Update

Advertisements

Garrett Electronics - trusted by real miners & prospectors!
Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue