Gemstone Rough Facet Grade Material
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Colored Stone Mining in the United StatesColored stones are produced commercially from a few hundred mines in the United States. These mines are typically very small - with a few employees who often work part-time. Gemstone mining employment in the entire United States is estimated to be between 1000 and 1200 people.
A significant portion of the United States production of colored stones is done by collectors, gem clubs and hobbyists instead of businesses.  Many of the mines are not operated by employees, instead they are open for public collecting, where, for a fee, anyone can enter the mine, look for gemstones and keep whatever is found. more...