History & Geology
Conrey Dredge No. 4—Part II
December 2017 by Don Madore
These were the men who periodically picked up the gold amalgam from the tables and sluices in the dredge, processed it, and transported the gold ingots to the railroad express office in Alder. Their trustworthiness must have commanded a prominent wage.
Mineralized Faults and Contacts in the Search for Gold
![](http://www.icmj.com/userfiles/images/201601/26-faults-and-contacts.jpg)
Placer Gold Deposits in the Western States
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
The Heavy Minerals in Your Concentrates
![](http://www.icmj.com/userfiles/images/201606/18-toc-heavy-minerals.jpg)
Gold Deposits of the Ivory Coast
Ivory Coast has considerable gold reserves, and this nation has the largest area of greenstone belts prospective for gold in the continent.
The Basics of Geophysical Exploration
In developing a mineral property or mining claims, one of the first goals is to identify and quantify valuable deposits. The classic method of doing this is by drilling holes into the ground to sample what is below the surface. The problem is that one or two holes usually are not going to tell you a whole lot...
Nevada's Silver City Gold District—Part I
![](http://www.icmj.com/userfiles/images/201603/33-toc-silver-city-gold-district.jpg)
The Forms of Crystalline Gold
The largest and most perfect single gold crystals are nearly always in the form of octahedra. These large octahedral crystals often possess deeply recessed faces.
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