History & Geology
Jadeite in California
April 2015 by Bill Rich
...two jadeite locations in California have been thoroughly researched by geologists. There are no doubt others that lie in wait.
What About Palladium?
Palladium may well be an underexplored element and therefore an opportunity for prospectors and geologists. This is because they are often less than obvious and other than the native metals, a chemical analysis of samples is required to identify PGM-enriched rocks.
The Rochester Mining District of Nevada
Only the richest ores could be worked and shipped off for processing at a profit. As a result, early mining in the southern part of the Humboldt Range was short-lived. In the 1880s, placers were discovered in Spring Valley and American Valley on the east side of the range...
Exploring A Historic Lode Mine
Climbing up the debris, I pointed my flashlight up a shaft ascending straight up as far as my light would shine. It was the stope of the pay shoot leading to the old tunnel above!
Ophir—Possibly the Best Kept Secret in Alaska!
![](http://www.icmj.com/userfiles/images/201311/TOC-ophir.jpg)
All About Garnets
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Placer Mining At Chititu Creek, Alaska
![](http://www.icmj.com/userfiles/images/201503/39-toc-halloran.jpg)
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