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1,872 questions

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Pl help me to identify these rock No 1&2 non magnetic. Give brown poweder when grind and metallic shine not hematite

0 votes


asked Feb 12, 2017 by santoshmlokhande (830 points)
edited Feb 12, 2017 by santoshmlokhande

1 Answer

0 votes
I'd say the bottom two are pictures of opal.

The other may be aquamarine.
answered Feb 13, 2017 by Weasel (42,940 points)
The pictures are very blurry and there is very little background information. It's hard to give any assistance on identification in such a scenario.