1. Education

Olivine from the Beach


These are some olivine crystals from Hawaii's Green Sand Beach.

This is a NASA close-up of some of the sand. The crystals I saw were more uniform and round than this, but the clarity and color is accurate. I am told sometimes there are crystals large enough they could be faceted as gems.

Tom Trower, NASA
Top Related Searches

©2014 About.com. All rights reserved.