• 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

2,159 questions

3,776 answers

1,077 comments

23,822 users

can you help me identify these stones? i have other (maybe precious) stones as well

0 votes

asked Mar 5, 2018 by lpchuvy (210 points)

1 Answer

0 votes
The black stone looks like obsidian or a piece of slag or a schorl.better check the specific gravity.if its a carbonado (black diamond) the hardness would be 10 on moh scale and a low specific gravity could be be from 3.10 to 3.50 due to its porous nature.
answered Mar 7, 2018 by Pride (1,040 points)
 


...