History & Geology
All About Pyrite
January 2015 by Chris Ralph

Fabulous Florence—The Golden Town of Idaho
In September 1861, on a round-about prospecting journey homeward, five California gold miners discovered gold in the area now called Florence. While watering the horses, one of the men noticed a golden color on a piece of slate bedrock in the stream...
Gangue Minerals - What Do They Tell Us?

Ancient River Channels of Trinity County
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
The Heavy Minerals in Your Concentrates

Gold Refining In The Ancient World
Gold Placers of Southern California
I grew up in Southern California, and found my first nugget there, so I know my way around. Because there is good gold there, I thought it might be helpful to take a look at the many placer gold opportunities found in the southern part of the state.
Strategic Metals—Part I
A bill was introduced and passed by the House of Representatives earlier this year that should make the exploration and opening of a mining operation faster and easier.
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The Bawl Mill
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• Return to Chicken, Alaska
• The Pothole Patch
• Diamond Prospecting in Indiana
• Significant Progress for California Suction Gold Dredgers
• Why Did This Silver Mine Close? -Conclusion
• The Ely Copper-Gold District of Nevada
• Melman on Gold & Silver
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• How to Field Evaluate A Placer Property