Hard Rock University: Expensive Hobby or Real Business?
July 2015 by Keith BowenImproper sampling techniques lead to more avoidable heartache than almost anything else in micro mining.
...I decided to excavate the semi-frozen high-bank that was resting on a soft shale bedrock footing. Within three feet, I encountered an intrusive!
There is a major change coming in the economy of the world and now is the time for prospectors and miners to grab a ticket and get on board.
The evaluation must also consider the gold fineness or purity. The purity of the Sugardaddy nuggets is estimated at 850 fineness, meaning 85% is gold (Au), 12% is silver (Ag) with 3% being other gangue alloyed metal.
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
We descended hunched over, down a long, steep, wooden staircase to the 1,000-level.
...most prospectors don't even think about the conductivity of minerals, but there are some that do conduct electricity to a certain degree, so metal detectors will respond to them.
The Bawl Mill • Ask The Experts • Ask The Experts • Trail to Treasure • The Smell of Gold -- Part II • The Reason We Fight • My Great Nevada Adventure • Prospecting for Pegmatites • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices