Snowflake Obsidian domed flatback Cabochon, no hole. 40x30mm

Snowflake Obsidian.  A solid soft black, with a variable gray flake pattern. One stone bead.

Great to bead around, make into a brooch.    Picture is a stock image of the actual stone, which all vary in coloring. I will try to add actual images if you would like a certain one or coloring in particular.