Handmade Mineral and Fossil Jewelry › Silver Sheen Obsidian — 10x14mm coil mini Image 1 of 1 Silver Sheen Obsidian — 10x14mm coil mini $75.00 Silver Sheen Obsidian wrapped in bare copper and silver-plated copper. Add To Cart Added! Silver Sheen Obsidian wrapped in bare copper and silver-plated copper.