Obsidian - Natural stone bead - Jewelry making - France Perles - World of pearls
Bead, rainbow obsidian (natural), 18mm round, B grade, Mohs hardness 5 to 5-1/2. Sold per 8-inch strand, approximately 10 beads. - Fire Mountain Gems and Beads
Iridescent (Rainbow) Obsidian Beads 10 mm Balls
Golden Obsidian Beads (6 mm, 8 mm or 10 mm) - Crystal Dreams World
Buy 10-11mm Rainbow Obsidian Faceted Coin Beads 15 inch 34 pieces Online | The Bead Traders