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Found a black rock

0 votes
Hi. I was swimming in a stream this weekend and I stumbled across a black kinda shiny rock (or at least I think a rock). Its lightweight and shiny. It looms kinda like coal but I tried to burn it and got nothing. It seems brittle, not magnetic and won't burn.  What is it.
asked Jul 2, 2018 by Corkat2 (120 points)

1 Answer

0 votes
Where were you swimming. Lake Erie, Lake Tahoe...? Attach a photo use this icon ^ straight above the carot
answered Jul 3, 2018 by Weasel (56,020 points)