The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector
June 2012 by R. V. LarsonI (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.
There are a large number of different kinds of gangue minerals, and each of them has its own tale to contribute to the story of the chemistry and geology of a deposit.
There are several common ways that new mineral crystals form and grow. Perhaps the simplest is when minerals form through the cooling of molten rock and the atoms bond together into mineral crystals.
...the area around Eureka, Nevada is well mineralized and seems to have a bright potential for future production of all sorts of metals.
I set up my dry washer on the north side of the cut and sampled the bed rock and dumps around me. As I was only sampling, I ran for 20-30 minutes, shoveling from a variety of areas.
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.
The strike and the dip of the veins can be broken down into two categories: veins in the eastern area and along Lander Hill, and the veins in the southwestern portion of the district.
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
The Bawl Mill • Our Readers Say • Iowa Hill District • Gold Deposition and Gradients of Placer Streams—Part I • Pursuing Rare Earths in Wyoming • The Mole • Prospecting for Copper Ores—Part I • Repair / Replace Tax Rule Changes • Colorado Mining Association Appeals Roadless Ruling • Ganes Creek Hits 10 Years—Part II • Fifteen and Counting • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices