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2,073 questions

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14,374 users

Brown mineral

0 votes


I bought this a long time ago: I forgot what it is called.

It does leave a slight streak on glass.




asked May 26, 2015 by Renata (7,840 points)

1 Answer

0 votes
That looks like aragonite. Looks like a classic trilling. Does that ring a bell?
answered May 27, 2015 by hershel (49,750 points)
Thx, Hershel!