The Geology of Diamond Deposits

May 2019 by Chris Ralph

New theories have been developed and they may lead to new discoveries and give prospectors some new insight on where to look for diamonds.

Critical Metals: Antimony

June 2016
I’ve been taking a look at the mining and uses of a number of critical metals in series of articles, and it’s time to take a look at antimony.

The Tombstone Silver-Lead District, Arizona

April 2016
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.

A Journey Into the Silver Peak Range

June 2013
The Gold Rush in California called hundreds of thousands of souls to leave their homes to journey to the the far reaches of the West. At first the rich goldfields of the Sierra Nevada beckoned to these adventurous pioneers.

Gold in The Silver Crown District, Wyoming

February 2015
When my field assistant Jay Roberts and I entered the mine, it appeared as if someone just walked out of the mine, turned off the lights and never returned.

Gold and Silver Deposits of Bodie, California

November 2019

Bodie, California, in its heyday, was once rumored to be one of the roughest and most lawless towns in the American West.

Alaska's Cripple Creek Mining District

November 2011
If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.

Refractory Gold Processing

February 2013
After your excitement peaks when you first receive the high gold assay from the vein you just exposed, you ponder how you will extract and sell your gold. You will need to develop a flow sheet for your process to optimize your recovery and minimize your costs and permit requirements.

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