![Bead, rainbow obsidian (natural), 14mm round, B grade, Mohs hardness 5 to 5-1/2. Sold per 8-inch strand, approximately 10 beads. - Fire Mountain Gems and Beads Bead, rainbow obsidian (natural), 14mm round, B grade, Mohs hardness 5 to 5-1/2. Sold per 8-inch strand, approximately 10 beads. - Fire Mountain Gems and Beads](https://image1.fmgstatic.com/images/p2845geb.jpg)
Bead, rainbow obsidian (natural), 14mm round, B grade, Mohs hardness 5 to 5-1/2. Sold per 8-inch strand, approximately 10 beads. - Fire Mountain Gems and Beads
![Bead, snowflake obsidian (natural), 6x3mm rondelle, B grade, Mohs hardness 5 to 5-1/2. Sold per 15-1/2" to 16" strand. - Fire Mountain Gems and Beads Bead, snowflake obsidian (natural), 6x3mm rondelle, B grade, Mohs hardness 5 to 5-1/2. Sold per 15-1/2" to 16" strand. - Fire Mountain Gems and Beads](https://image1.fmgstatic.com/images/p6636gsb(3).jpg)
Bead, snowflake obsidian (natural), 6x3mm rondelle, B grade, Mohs hardness 5 to 5-1/2. Sold per 15-1/2" to 16" strand. - Fire Mountain Gems and Beads
![Amazon.com: 8mm Natural Black Obsidian Beads Round Gemstone Loose Beads for Jewelry Making (47-50pcs/strand) Amazon.com: 8mm Natural Black Obsidian Beads Round Gemstone Loose Beads for Jewelry Making (47-50pcs/strand)](https://m.media-amazon.com/images/I/51o5c--ZwzL._AC_.jpg)