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I have pieces of grayblack and silverly glittery stones they have a weight and a metalic luster what could they be?

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asked Oct 7, 2015 by Nadi Mvula (150 points)

1 Answer

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Looks like slag to me. If it is magnetic that would confirm it. Give us some more information. Where was it found, like Marquette Michigan near a copper mine...on the beach in Long Island...! Tell us if it is magnetic, hardness whatever you feel relevant and we will try more identifacation.
answered Oct 12, 2015 by Weasel (33,770 points)

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