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More on Meteorites

...how many of us have knowingly found or bought a meteorite—a small to large mass of stone or metal; a meteor that has survived not only a space voyage of millions of years, but also the impact of striking the earth?

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A Test Grid Dredged for Gold Values


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.

Cripple Creek Gold Mine Exceeding Expectations


At the peak of construction later this year, the mine will generate more than 6,000 direct and indirect jobs across the state with annual wages totaling more than $200 million...

How Should I Work This Prospect?


How big is the deposit? Are there boulders you will need to move? Do you just want to recover the nuggets or do you think there is good fine gold that you will also want to capture?

East Coast Dredger Heads West—Part III


Gold recovered from suction gold dredging on the North Fork of the Salmon River.There was an outcropping of exposed bedrock on the bank, and it again resurfaced in the river about 25’ away. I decided to start a hole near that exposed bedrock, and pointed the nozzle down into the sand and cobbles.

Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length


If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.

Carbonatites


Carbonatites are rocks that formed from molten calcite or dolomite. The thought of calcite being molten lava is difficult to accept, but it was confirmed when it poured out of a vent in Tanzania in 1960.

Ask the Experts


Q: Would a mining company be interested in this area for just the magnetite?

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