The Blue Diamond mine, located in central Nevada, opened in the late 1950’s and was mined up to 1980. This mine is considered a “hat mine” of which there are very few. A hat mine is a small deposit of turquoise that, “you can cover with your hat.” The stones that this mine produces, which are usually large pieces in plate form, looks a great deal like Stormy Mountain turquoise because of its black smokey matrix. This stone features dark smoky matrix surrounded by a brilliant blue. The characteristic black chert is ever-present. This mine is now closed and buried under thousands of tons of rock.

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