How To
Enrichment of Mineral Deposits by Weathering—Part I
March 2016 by Chris Ralph
The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.
Ask the Experts - proper mining claim procedures
Q: Can you offer any information on proper mining claim procedures?
The Fire Assay of Carbon
Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.
Operation And Application Of Magnetometers
The technology used in these devices has advanced greatly in the last century. Many different types of physical effects are used to measure these magnetic fields and we will briefly look at some of these.
What is a Valid Mineral Discovery?
One of the greatest opportunities afforded to the citizens of our country is the right to stake and hold mining claims on federal lands. One doesn’t need to be a lawyer to stake mining claims, but a little bit of knowledge about mining claim laws can be helpful.
Gold Recovery with Centrifugal Bowls
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
Tips and Tricks
I cleared the connector by poking a small Phillips screwdriver through it. To ensure the bore was clean, I dunked the connector into some water and then blew it clean with my shop air compressor.
Dredging Tips and Tricks: A Measure of Water Pump Efficiency
…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?
Subscription Required:
The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts
• Ask The Experts
• Ask The Experts
• How to Stake Your Own Mining Claims—Part I
• Addressing EPA Overreach: What Dredgers Need to Know
• Green Valley Gold District, Payson, Arizona
• Nevada's Silver City Gold District—Part I
• Alaska: Kodiak Islands Mineral Resources
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
Ask The Experts
• MMAC & PLP Update
