| Country of Origin | United States |
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Check the listing for details. High Grade Silver Ore - Tungsten Ore Specimen - Einstein Silver Mine 221 Grams. Condition: New, Made in United States. Listed at 50.00 USD. The contents of the vein do not appear, so far as one can judge from the dump-piles, to have been arranged in layers, but were disseminated through the gangue. The thickness appears to have varied from 2 to 6 feet.