Rocks Slabs and Specimens › Rainbow Obsidian Image 1 of 2 Image 2 of 2 Rainbow Obsidian $40.00 Unpolished, shown wet7.5 x 4.25 x .2 , 160 gm Add To Cart Added! Unpolished, shown wet7.5 x 4.25 x .2 , 160 gm Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More