Simple Rules of Gold Geology: Comparing Epithermal and Mesothermal Deposits

July 2017 by Chris Ralph

Geology is a science of general tendencies with frequent exceptions, not one of hard and fast rules that are always true and never vary. For almost every well-accepted rule of gold deposits, I can point you to a number of important exceptions.

Enrichment of Mineral Deposits by Weathering—Part I

March 2016

The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.

The Paragenesis of Gold & Silver Deposits

March 2015
…if you are game for digging in and learning more about the intricate details of how gold deposits form, then let’s jump right in.

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.

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.

Reese River Silver Mining District, Nevada

March 2014
The strike and the dip of the veins can be broken down into two categories: veins in the eastern area and along Lander Hill, and the veins in the southwestern portion of the district.

Over the Divide: John A. Miscovich

October 2014
Mining “giant” John A. Miscovich died August 22, 2014, at the age of 96. He was the well-known inventor of the “Intelligiant” water cannon.

The Many Facets of Iron

March 2013
I’ve been fascinated by iron minerals for many years. So let’s take a look at this very interesting and colorful element.

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