The Bawl Mill
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Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.
The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.
Let’s examine why your placer gold looks the way it does and what you can tell about its journey based upon its appearance.
In some places valuable ores can be found within the waste material of mine dumps, sorted ore piles, and detrital vein matter at the surface. Though many of these old mine sites can be an excellent source of gold, not all are created equal.
Q: ...It’s a 2,000-acre property that was mined 100 years ago, still has the old workings, tailings, etc. I am looking to recover gold from the old waste/tailings... plus possibly strip mine some of it. What are my options?
The 100-yard restriction in SB838 actually applies to all motorized mining for the purpose of extracting gold, silver or any other precious metal that results in the disturbance of vegetation.
The Yukon-Klondike Goldfields—Part I • New Mine from Century-Old Gold-Silver Bonanza • Solar Powered Placer Equipment • The Treasure Detective—Part III • Countries Want More Concessions From Miners • New Interim Rules For Washington Miners • Detecting for Possible Mid-Range Eluvial Gold • Melman on Gold & Silver