Toll-Free 888-331-7625 or 307-754-4681 | Shopping Cart | About Us - Company Info | Contact Us Page | Home Page Obsidian, black lace slabs $4.00 Five square inches of black lace obsidian from Oregon. A double flow pattern with swirling bands of darker black on light black when held to the light. May contain a small amount of mahogany color or iron impurities. Very interesting patterns for jewelry, lamp shade panels and more. Stock 541s Related Items Here are some products that may also be of interest to you: • Rough: Obsidian, black lace • Cab: Obsidian, black lace, 38mm