Its called Obsidian. Another name is volcanic glass. As a gemstone, its called Onyx.
The name of the dense volcanic glass that is typically black in color is obsidian.
Most commonly just referred to as black volcanic glass. Unless you're looking for a specific type like obsidian or tachylite?
Mountain of Black Glass has 720 pages.
Other names for obsidian is Apache tears, volcanic glass, and Black obsidian.
Mountain of Black Glass was created on 1999-09-01.
a vase with a black rose
black widow
A black baby in a microwave.
Caitlin Glass's birth name is Caitlin Tiffany Glass.
Everett Glass's birth name is Everett William Glass.
Gaston Glass's birth name is Gaston-Jacques Glass.
Montague Glass's birth name is Glass, Montague Marsden.