Natural Gold Alloys
March 2014 by Chris RalphNatural gold is never 100% pure; all natural nuggets contain at least some impurities. We're going to take a look at just what some of those impurities might be.
The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.
For approximately 30 years, the mines produced good ore, some so rich it was simply sent straight to bagging, bypassing milling and loaded directly on the rail cars.
You can learn a lot from a small mining operation because you have to become proficient in every job. Soon I was preparing fuses, placing powder (dynamite) and learning the ins and outs of drilling and blasting.
The large buckets were favorable for the type of ground worked. The gravel was tenacious and compact, due to the existence of irregular pockets of clay.
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
Many miners know that lead is very commonly associated with silver values, but the truth is that it is also associated with gold values in many locations as well.
It also happens sometimes that glaciers will bury valuable placer deposits. This occurs when the glacier goes over the top of an existing placer deposit.
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Ask the Experts • Prospecting Hard Rock • Reese River Silver Mining District, Nevada • Alaska: Large-Scale Mining Can Be Done Right • Gold of the Iditarod Mining District, Alaska • Bedrock • Government Takes Land for Open Space • Comments on Gold Rush and Bering Sea Gold Series • Hidden Value in Old Tailings • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices