• 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

2,237 questions

3,908 answers


124,285 users

Please help! Can't identify this green mineral found in San Diego County, California.

0 votes

From hills in North San Diego county. Possibly epidote?  I've been collecting these for years and have looked at every mineral photo online but have not found anything like it.  Have also found it in black (small black crystal seen in this pic).  Picture is magnified about 4X.  Actual rock is 1" X 2".

asked Oct 26, 2018 by geal001 (120 points)
edited Oct 26, 2018 by geal001

5 Answers

0 votes
I don't own a cell phone but try sending your post and hit edit to attempt to get tool bars to pop up, use bottom tool bar sixth boxleft to right first icon, lookslike negative image of sun and two mountains.
answered Oct 26, 2018 by Weasel (58,980 points)
0 votes
First off, I would encourage you to check for the black minerals and such for a match. The structure of the inside material looks similar to the top layer prompting me to think it has oxidized. Check and let us know if it is magnetic. We'll go from there.
answered Oct 26, 2018 by Weasel (58,980 points)
0 votes
The only thing I can think of is epidote, but I'm not sure. The structure is really weird. What is its hardness?
answered Oct 26, 2018 by linkisnotzelda (5,390 points)
Hi - I uploaded another pic.
Take a look and let me know your thoughts.
0 votes

Here are more sample rocks found in same general area so you can see the other forms of the green mineral.

answered Oct 31, 2018 by anonymous
0 votes
I'm almost sure because of the structure of the mineral that it's most likely actinolite which is a rare green mineral found in southern California especially near wrightwood California
answered Sep 2, 2019 by RENEGADEreaper

Related questions