• Register

Information for users from the old Q&A site
If you have an account from our old Q&A site, your account was transferred over, but you need to reset your password and confirm your email address.
Reset Password here
Confirm Email here

1,569 questions

2,842 answers


4,404 users

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 by santoshmlokhande (330 points)
edited Feb 12 by santoshmlokhande

1 Answer

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

The other may be aquamarine.
answered 6 days ago by Weasel (30,090 points)