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.
Additional articles that might interest you...
Ask The Experts
December 2014
• Determining the amount of gold in a specimen
• Determining the amount of gold in a specimen
How to Field Evaluate A Placer Property
January 2015
If there is misleading wording anywhere, it will be in the sample data and in reserve/resource estimates.
If there is misleading wording anywhere, it will be in the sample data and in reserve/resource estimates.
The Fine Art of Panning Heavy Sands
October 2011
The fine art of panning heavy sands requires a measure of patience. If you enjoy panning gold, you ought to enjoy this too, once you get the hang of it.
The fine art of panning heavy sands requires a measure of patience. If you enjoy panning gold, you ought to enjoy this too, once you get the hang of it.
Hard Rock Milling: A Matter of Scale
April 2013
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
Hunches, Choices and Guesses
September 2013
When you approach a location, even if you've been there before, you should consider all the factors and conditions present at the site. This includes both natural and man-made factors.
When you approach a location, even if you've been there before, you should consider all the factors and conditions present at the site. This includes both natural and man-made factors.
Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks
June 2014
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
Ask the Experts
January 2015
• How do I get mining claims appraised?
• How do I get mining claims appraised?
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
