Snowflake Obsidian Slab! Lapidary Stone Slab!

Snowflake Obsidian is a gorgeous form of Obsidian with inclusions of Cristobalite, which create the snowflake like appearance!  It takes an excellent polish, with the beautiful white snowflakes on a black background, this helps it work into some amazing and captivating cabochons!  Obsidian can also be great for knapping!     Measurements (inches - longest - approx): 4.8 x 4.2 x .29   The last photo has been taken dry so that you may see any defects. The other photos have been taken wet and in natural lighting to simulate a polish.