Friday, 18 November 2011

Obsidian ~

Obsidian is a form of naturally occurring glass resulting from volcanic lava flows.  The wikipedia article linked to here states that:
[it] is commonly found within the margins of rhyolitic lava flows known as obsidian flows.
Snowflake obsidian: 
The article above continues...
...In some stones, the inclusion of small, white, radially clustered crystals of cristobalite in the black glass produce a blotchy or snowflake pattern (snowflake obsidian).

The necklace pictured above is the only set of beads I've ever seen made from this material.  I have found it surprisingly pleasing.

Clear blue obsidian:
Look at this!  It could not be more different:


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