Toll-Free 888-331-7625 or 307-754-4681 | Shopping Cart | About Us - Company Info | Contact Us Page | Home Page Cab: Obsidian, silver sheen, OR, 30 x 22mm $12.95 The oval obsidian cabochon is silver sheen from OR and sized at 30mm x 22mm.  This beautiful cabochon is by Gary Olson. Capturing the sheen in a photograph can be difficult, but the play of light of silver sheen obsidian in the sun is remarkable. Related Items Here are some products that may also be of interest to you: • Obsidian, silver sheen, OR slabs