A Test Grid Dredged for Gold Values
June 2018 by Bill Bohan
The evaluation must also consider the gold fineness or purity. The purity of the Sugardaddy nuggets is estimated at 850 fineness, meaning 85% is gold (Au), 12% is silver (Ag) with 3% being other gangue alloyed metal.
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.
We needed something to cook on, so we brought most of our kitchen with us including our full-size oven, which was pretty funny to see in the middle of a rainforest. Food was always a concern, but fortunately for us...
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Q: How do I improve my small-scale mining operation’s gold production?
In last month’s issue we covered the initial discovery of gold, the subsequent gold rush that occurred around Nome, some of the geology of the area and past production. We’ll conclude the article in this issue with a further examination of the geology and deposit types, discuss the resources...
The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts - Are there different “ferro” products processed out of the ore? • Ask The Experts - How hot does a furnace need to be to get rid of sulphides? • Ask The Experts - Will this paystreak be downriver off the trailing edge of bedrock? • Putting Together A Small Free Gold Mill—Part II • Chasing Float Gold—The Starry Night Wash • 2018 National Mining Hall of Fame Inductees • Michigan House Votes to Give Mining Operations More Flexibility • Mineral Exploration On The Rise • 18 Acquitted in Massive Brussels Diamond Heist • Captain Obvious Strikes Again • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices