kingofbane
Jr. Member
- Sep 21, 2013
- 52
- 17
New find! Help identify please
- Thread starter kingofbane
- Start date
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kingofbane
Jr. Member
- Sep 21, 2013
- 52
- 17
- Thread starter
- #2
I believe it is calcite. A copper penny will scrape it.
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kingofbane
Jr. Member
- Sep 21, 2013
- 52
- 17
- Thread starter
- #3
Has a minor reaction to
Vinager
Vinager
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