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Could you help me identify this 12"x12" rock? Looks like calcite covering a brown mineral.

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asked Jun 8, 2016 by MarkyD (600 points)
retagged Jun 12, 2016 by MarkyD

1 Answer

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Could be calcite. I don't know what the brown mineral encapsulated by the cal site is. Also there is some yellow/gold could be a stain but could be another mineral.

answered Jun 25, 2016 by markyD