• 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

2,120 questions

3,701 answers


15,654 users

Identify this rock?

0 votes

Can anyone please tell me what this rock is

asked Sep 24 by Heynup (120 points)

3 Answers

0 votes
this looks like chalcedony
answered Sep 26 by Weasel (54,570 points)
0 votes
Chalcedony or agate is my best guess. Where did you find it?
answered Sep 26 by linkisnotzelda (4,150 points)
It was found in Julian California
Hmm... Is it translucent?
0 votes
I do believe we cannot rule out obsidian.
answered Sep 28 by Weasel (54,570 points)
It's too lightly colored and too transparent to be obsidian. Most likely a type of chalcedony, though the photo quality is poor and it's hard to tell because of that.

Related questions

0 votes
4 answers
+1 vote
1 answer
asked Mar 15 by Paeone (130 points)
0 votes
1 answer
+1 vote
1 answer