Mohave County, Arizona: The Oatman/San Francisco Mining District
July 2019 by Dean Delahaut
The Oatman/San Francisco Mining District’s historic gold production of 2.2 million ounces of gold since the 1880s makes this area Arizona’s greatest primary gold producing district.
The Beatty Mining District in south-central Nevada has been one of the most productive Mining Districts in the state, producing millions of ounces of gold together with silver, fluorite, mercury and other valuable minerals.
Palladium may well be an underexplored element and therefore an opportunity for prospectors and geologists. This is because they are often less than obvious and other than the native metals, a chemical analysis of samples is required to identify PGM-enriched rocks.
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.
It is not necessary to have a PhD in geology, but you need to know the basics, so that’s what I am going to try to dig into here—the understandable basics of these gigantic gold deposits.
A Wilfley table works best when all of the mineral being run across it (the pulp) is about the same size. For this reason, I took a good look at each of the samples.
For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.
In this article, part of an ongoing series taking a look at critical metals in our economy, we will examine the mining and use of the metal zinc.
The Bawl Mill • Ask The Experts - Diamonds in the Mother Lode? • Ask The Experts - How do I set up my shaker table? • Ask The Experts - Does silicone rubber make a good sluice mat? • Ask The Experts - Conflicting assays for platinum group elements • Get Boots On The Ground For Patch Hunting • Lessons Learned From Geologists • Gold Prospecting for Better or Worse: Man vs Paydirt • ICMJ Honored As Prospecting Magazine of the Year • The Sunbaker • A Golden Vacation • Mining Company Pays Millions for Gold Dug From Mine Dumps • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices