History & Geology
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.
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.
Strategic Metals—Part I
A bill was introduced and passed by the House of Representatives earlier this year that should make the exploration and opening of a mining operation faster and easier.
How To Identify Minerals
There are a number of characteristics that are used when one identifies a mineral. Each characteristic gives an indication as to what the mineral might be, and the combination of them will point to what it is.
The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector
I (enjoy) Twain’s description of a gold mine, “A hole in the ground with a liar at the top.” Some humor here? You bet, but I’m sure he meant it to be a real eye opener as well.
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.
Gold Refining In The Ancient World
Residual Placers: An Often Overlooked Gold Source
Because the forces of erosion and gravity tend to carry lighter materials like quartz away more easily, the heavy minerals like gold or silver will tend to be concentrated in the general area around the vein outcrop. These concentrations are what make residual placers so attractive.
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
SB 838 and the Future of Mining in Oregon • New Mining Regulations in Maine