Let cool patterns take center stage in your designs with the snowflake obsidian 12mm coin beads from Dakota Stones. Available by the strand, these beads feature black color accented by inclusions of small, white clustered crystals that produce a blotchy or snowflake pattern. Mined in Mexico, snowflake obsidian is a naturally occurring volcanic glass. The Aztecs believed obsidian to be a "divine stone." These gemstone beads feature a circular coin shape that allows the white snowflake-like patterns to shine against the gleaming black background. Use these beads in bracelets and necklaces.