Using Rock Formations to Your Advantage
June 2005 by Jim StraightOver the past twenty or more years, the traditional “seat of the pants” science of using mineral identification tables as a means to identify common ore minerals, their associated rock-forming minerals and rocks, has slowly become a lost art.
Q: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.
Q: How much gold do I have per ton and how can I improve my assay method?
The mining district is more than 110 years old, but the two recreational mining areas are new. The State of Alaska designated the Petersville Recreational Mining Area within the past year and the Alaska Gold Mining Camp is not much older, so you can expect to find some unmined ground!
The same questions you ask yourself about gold trapping features in the present stream can be applied to the benches above the stream. Just imagine the stream at a much earlier time, before it cut its way down to the present level…
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Silver Creek, in New Mexico's Catron County, is a narrow defile in the Mogollon Mountains. Known to be the home of fierce Apache bands, gold and silver veins were waiting there for an adventurous, if not foolish, prospector.
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