History & Geology
California's Mother Lode Quartz Veins
May 2015 by Chris Ralph
The actions of the hot, ore-bearing solutions are not limited only to the deposition of material within the walls of the fissures.
The Struggle to Reopen Alaska's Largest Gold Mine
The historical AJ mine, located east of Juneau, Alaska, was considered the largest gold mine in the state at one time. Joe Juneau and Richard Harris struck gold there in 1880, and it has been more recently known as a tourist destination.
Crystallized Gold Mines of California
Gold specimens that include visible crystal formations are among the rarest, most attractive and most valuable forms of gold to be found.
Jadeite in California
...two jadeite locations in California have been thoroughly researched by geologists. There are no doubt others that lie in wait.
Gold: Is It Everywhere?
Gold, on the other hand, is super rare, and is one of the rarest elements in the earth’s crust. It averages only 0.000004 percent of the earth’s surface. That is four parts in a billion.
Detector Brings New Life to An Old Lode Mine
…it was immediately evident the previous owner had not been using a detector. During just a few months of working the dumps part-time, he recovered gold in quartz specimens valued in excess of $40,000.
Understanding Rock Formations: Petrology for Prospectors
There are times when being able to recognize a type of rock can make you a much more successful prospector.
Nevada's Lithium Boom
When prospecting for lithium, after confirming for macro attributes through research and field work, including examination of surface geology, the main tool is an accurate lithium assay.
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