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. Machine-cut, drilled and polished for a consistent size and shape.
Beads>Grade A>Rainbow ObsidianBeadsGrade ARainbow ObsidianBlacksOval14mmNaturalhttp://www.firemountaingems.com/itemdetails/h201969geH201969GEBead, rainbow obsidian (natural), 14x10mm flat oval, A- grade, Mohs hardness 5 to 5-1/2. Sold per 8-inch strand.//image2.fmgstatic.com/images/p1969geb(2).jpg19.7619.76As Low As $10.05 per strand