The Fire Assay of Carbon
February 2016 by Hank Chapman, Jr.Carbon, activated charcoal, or “char,” as some old timers refer to it, can be an assayer’s nightmare.
There are a few questions you will need to ask yourself before you apply for a suction dredge permit from the State Water Resources Control Board.
Present conflicts and realizations having to do with dependence on China have illuminated the fact that suction dredge miners have a vital role to play and are an ignored and untapped domestic resource—until now.
Before I tell you what dredging backwards is, I’ll tell you why my team and I decided to give this very unconventional dredging method a try.
An online video gave me some ideas, and with a lot of trial and error I developed a reliable method of panning free gold particles down below 35 microns quickly and easily.
The non-toxic thiosulfate is actually the medical antidote given to people for cyanide poisoning. By accomplishing both neutralization and metals recovery, this process creates an economic and environmentally attractive process.
Chances are better that both types of gold did not come from the same source. Let's look at the probable conditions to cause two types of gold in a placer.
While mapping, I also found rock chips in the soil that were characteristic of the same wall rock alteration that occurs adjacent to the known lodes in the greenstone belt.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts • Ask The Experts • Ask The Experts • Ask The Experts • The Art of Underwater Nugget Shooting • Northwestern Alaska Mineral Resources • A Family Quest for Gold • MMAC & PLP Update • Determining the Amount of Gold in Rich Ores • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices
Gold in Quartz