The listing, Mahogany/Brown Obsidian - Mineral Specimen has ended.
A beautiful swirled/marbled redish-brown with black chunk of obsidian! Found by me in northern Nevada, this type of obsidian was prized by the Northern Paiute Indians for making tools and arrowheads. 1/3 of the rock are 'fresh and clean' fracture surfaces showing off the dazzling interior. The other 2/3 is a mix of the natural chocolate colored exterior rind with small crescent shaped concoidal fractures. This rock is stunning for any home.