Professional Equipment for Serious Detectorists!

Magazine

All Articles

Greenstone

Greenstone is a hard, tough, altered igneous rock, usually dark green in color. The term “greenstone” has been loosely applied to all greenish rock, including peridotite, dunite, jade, serpentine, and even hydro thermally altered rocks in mining districts. True greenstone is...

Online access required. Please .

Add a Comment

Additional articles that might interest you...

Gold Prospecting for Better or Worse: Cold Gold


Because waiting for spring seemed to be taking forever, my 15-year-old granddaughter Grace and I decided to pan for gold sooner. The thought was…even if we did not find any gold, we would set a new record for absurdity—gold panning in the coldest weather!

Colorado Uranium Mining in the 1950s Boom


You can learn a lot from a small mining operation because you have to become proficient in every job. Soon I was preparing fuses, placing powder (dynamite) and learning the ins and outs of drilling and blasting.

Our Readers Say


• "Now for the reality..."
• "How times have chagned..."
• "Now I know why it was late..."
• "...the news media has been kept in the dark."
• "...expand it if you can."

The Bawl Mill


  • “Pensions before Honesty. Great slogan.”
  • An untimely death…

Foreigners Lure Mining Partners


There was a foreign presence at the annual Northwest Mining Association convention in December.

Legislative and Regulatory Update


• "No surprises" ruled restored
• Supreme Court to address submerged lands in Alaska
• Governors say reform the ESA
• Miners need to stay involved in each state

Looking Back


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

Subscription Required:
The Bawl Mill   • Lawsuit to Challenge New Forest Service Regulations   • Gold in Utah Laccoliths   • Where Do I Begin?   • Looking Back   • Mine President Seeks Opinions From Peers   • Over The Divide   • Picks & Pans: Miner Finds Heart of Gold   • Company Notes   • Canadian Arrow Tries Different Approach   • Experts Forecast Rising Prices for Gold, Silver   • A Few Reminders About Fraud   • Mining: Doing it Right the First Time   • Prospectors & Treasure Hunters Find Gems   • The Golden Highway—El Dorado County   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
Legislative and Regulatory Update

Advertisements

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