Rainbow obsidian is a lightweight volcanic glass with iridescent properties, giving it a subtle cat's eye glow in sunlight. Every movement reveals a subtle sheen, with muted rainbow colors moving on the stone. Microscopic crystals and bubbles of mica in the volcanic glass create the multicolored effect.
Beads>Grade B>Rainbow ObsidianBeadsGrade BRainbow ObsidianBlacksBall6mmNaturalhttp://www.firemountaingems.com/itemdetails/h208965gsH208965GSBead, rainbow obsidian (natural), 6mm round, B grade, Mohs hardness 5 to 5-1/2. Sold per 15" to 16" strand.//image1.fmgstatic.com/images/p8965gsb.jpg14.4714.47As Low As $7.49 per strand