Ask The Experts - Chlorine bleach and vinegar makes a deadly combination
December 2017 by Chris Ralph
Centrifugal bowls versus jigs
Oscar Espinoza considers himself an amateur gold prospector, but the gold nugget he recently found puts many seasoned prospectors to shame.
Here’s what actually happened, described in the case file documents: Based on a precious metal assay certificate signed by a registered southwest assayer, the sellers, in consideration of the payment of over $53 million, transfer over 185,000 troy ounces stored in a warehouse to a company based in Norway. This document was signed and notarized in a southwest town, and was publicly distributed in 2001. Guess what?! The warehouse floor concrete may have a higher gold assay than the concentrates sitting above it valued at fifty-three million.
Improper sampling techniques lead to more avoidable heartache than almost anything else in micro mining.
…the “One More Time” has turned into three more trips and each of the three has yielded more gold each time down.
by Ronald F. Balazik
Excerpted from USGS Mineral Industry Survey's 1998 Annual Review
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts - Looking for help smelting gold • Ask The Experts - Were there insufficient values to continue mining at this site? • Watch Out for Split Estates When Filing Your Claim • Detecting the Fringe Areas • Butte, Montana—The Richest Hill on Earth • Conrey Dredge No. 4—Part II • California: The Land of Big Nuggets—Part I • Gold Detecting Strategies for Hydraulic Mines and Debris Flows • New Technology for Extracting Lithium To Be Tested in Nevada • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices