Critical Metals: Lithium
February 2014 by Chris RalphProspecting for lithium deposits can take a number of different directions, because this metal can be extracted from a variety of geologically differnet sources.
Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...
The Reno Masonic Lodge was built along the railroad tracks back when Ulysses S. Grant was president and shortly after the Comstock Lode of gold and silver was struck in Virginia City.
The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.
I regularly get inquiries along the line of: “Hey, I found this rock, and I think it might be gold ore. How can I tell?” Prospectors are always on the lookout for gold-bearing rocks that may be the source of any nearby placer gold.
I get a number of questions from people about testing and treating hard rock ores. The simplest way, but also an expensive one, is to just have an assay test done by an independent assay firm. As an alternative...
While a large number of locations have yielded some placer gold, most of the state’s placer production has come from a few productive districts.
Gold on the bedrock is a good rule of thumb, but not one that is 100 percent effective. There are plenty of exceptions. So, how does a prospector recognize those exceptions?
The Bawl Mill • Legislative and Regulatory Update • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Our Readers Say • The Perfect Summer • Eolian Gold Deposits • Copper Deposits of Alaska • Divide and Conquer—Detecting Old Placer Grounds with Friends • Reserves and Resources Explained • Coprolite—A Prospector's Tale • Comstock Mining Gets Approval • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices