Obsidian is the rock formed as a result of quickly cooled molten lava. Often called volcanic glass, Black Obsidian is of course black in color with very fine streaks of impurities. Some customers have found actual gold veins running through our Black Obsidian Volcanic Glass on occasion. Black Obsidian Boulders are available in sizes ranging from 6” to 36”.
Call or e-mail us today to order your Black Obsidian Boulders. We ship anywhere in United States, Canada and the Islands.