It looks like quartz. Hard to be sure from a photo. It helps to know where it came from. Quartz is a 7 on the mohs scale. Try a scratch test to check harness. learn how here:
Enjoy this page? Please pay it forward. Here's how...
Would you prefer to share this page with others by linking to it?
Click on the HTML link code below.
Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment,
your Facebook account, or anywhere that someone would find this page valuable.
INTERESTED IN MORE? IF SO, YOU MAY WANT TO CHECK OUT OUR OTHER SITES: