Polarized Light Microscopy Digital Image Gallery

Obsidian Snowflake

Obsidian snowflake is a black variety of obsidian that features inclusions of a white mineral, which appear similar to snowflakes when polished. This mineral has been identified as cristobalite, a stable form of silica, in many samples. In some areas, the radiating crystals are believed to be more reminiscent of flowers than snowflakes, resulting in the materialís alternate moniker, flowering obsidian. The most notable occurrence of the unusual black and white glass can be found near Milford, Utah.


© 1995-2013 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.
This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.
Last modification: Thursday, Nov 20, 2003 at 03:51 PM
Access Count Since November 20, 2003: 6194
Microscopes provided by:
Visit the Nikon website. Visit the Olympus Microscopy Resource Center website.