Zentron Crystal Collection Black Obsidian Rough Lot of Stones Large 1" Pieces in Velvet Bag (1 Pound)

Description

Size:1 Pound Obsidian is a type of volcanic glass that is formed when lava cools. It is naturally very sharp when in its raw form. Even in raw form, it has a very shiny surface. Obsidian has had many uses throughout time, especially the use of its sharp edges as a tool for cutting.