• 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

3,692 answers

1,023 comments

15,579 users

Rock identification

0 votes

Hi! About a year ago i found this weird rock. It's non magnetic and the holes in it goes straight through.

Ideas?

asked Oct 7 by rockinsweden (120 points)

1 Answer

0 votes
Your rock looks like it has a host rock. In other words the inner rock looks to have formed inside an outer rock formation. You have porous rock into which a mineral solution leaks. It solidifies into a crystal or a simple silica like chalcedony... Does the exposed inner rock have a waxy feel. Real smooth?
answered Oct 9 by Weasel (54,530 points)
 


...