Strand Length: approx. 7.5-8 inches | Hole Size 2.5mm
8mm - Approx. 25 beads
10mm - Approx. 20 beads
Natural large hole black rainbow obsidian beads.
Obsidian is a glass-like volcanic stone resulting from the rapid cooling of lava. Being an amorphous stone, it does not have a geometric crystal structure like other minerals. Obsidian is most commonly black but can also be gray, dark brown, green, and everything in between.