Gold Refining In The Ancient World
March 2015 by Bill RichOne thing that stood out for me is that Agricola was very specific about the type of metal or wood in the implements and vessels that were to be used.
When I was a student in the College of Mines at the University of Utah, the Verde district was used as an exploration model for “submarine volcanogenic massive sulfide deposits.” So I looked forward to visiting this district and the town of Jerome in central Arizona in the spring of 2012.
A few years ago I had a tremendous opportunity to visit Australia and hunt for gold there. The geology of the gold deposits there was somewhat different from what I was used to here in the US. I learned a lot about greenstone belt gold deposits while prospecting them in person, and it was an amazing trip.
The placer mineral identification key is designed to answer this question. It attempts to recognize all the minerals in your gold pan concentrates.
Three homonyms come to mind when I think of gemstones, gold and vegetables: carrot, carat and karat. Let’s look at carrot first.
We descended hunched over, down a long, steep, wooden staircase to the 1,000-level.
The excitement over IOCG deposits began with the discovery of a monster deposit at Olympic Dam in Australia in 1976. The discovery was accidental as the operator was searching for strata-bound copper deposits.
The Bawl Mill • Our Readers Say • Ask The Experts • Ask The Experts • Ask The Experts • Just Another Ordinary Weekend • Small-Scale Hard Rock Mining With Water Recycling • The Paragenesis of Gold & Silver Deposits • Getting A Successful Start in Metal Detecting for Gold • Placer Mining At Chititu Creek, Alaska • Gold Rush Continues in Africa • Tasers and Mining Don't Mix • Thinking Outside The Creek • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices