Scream Ghost Obsidian Carving (1 Piece) halloween It was first discovered by

It was first discovered by and named for Canadian chemist and geologist Henry How in 1868

Avg Size Range: 2 to 5 inches

5 to 3 inches

Length (mm): 16

Pieces measure approximately 9mm (AVERAGE SIZE)

Scream Ghost Obsidian Carving (1 Piece) halloween It was first discovered byUniqueness Guaranteed: Every item is one of a kind, making them ideal for all projects or designs. Listing is for (1 Piece) Avg Size Range: (3) Sizes Vary Obsidian is not a gemstone, but instead a kind of glass that forms when volcanic lava rapidly cools in the open air without forming any specific crystalline structures. When polished, obsidian can occasionally exhibit a gold, silver, or rainbow sheen depending on any included minerals. Custom