Small-Scale Concentrating and Recovery Methods
April 2011 by Bill McCuskeyThe first step in my recovery process after milling the ore to the desired size is to table it. On this particular ore, I get good results milling it to minus 100 mesh.
When I started dredging a short distance downstream from that feature I realized that I was into a major paystreak and much of the gold was coming right out of the upper gravel. I could see the chunky pieces falling out of the gravel as they were pulled into...
Federal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.
For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.
My partner had the contacts and it wasn’t long before we had an agreement in place and the company had a geologist on site. I recall a time when he was getting the lay of the land, so to speak, and he broke off a rock sample and inspected it with his magnifier.
A draft environmental assessment of a proposal to allow long-term camping by gold miners along 21 miles of the North Fork of the Fortymile Wild and Scenic River is available from the Bureau of Land Management.
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
The Bawl Mill • Mining Claims—What to Know Before You File • Prospecting Underground: Use Caution • 5th Circuit Ruling May Benefit Miners • Indicator Minerals for Gold & Silver • Mud Men: Pocket Miners of Southwest Oregon Part III • Legislative and Regulatory Update • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Silver Mining Returning to Texas