Obsidian is volcanic silica glass. It’s the result of volcanic lava coming in contact with water. It is considered a semiprecious stone. It is use for ornamental and healing purposes. Color of Obsidian ranges from dark green to dark brown and black. streaks may appear and are called “the eye of the rock”. Some have it; some don’t. This is normal. This specimen is round. It reflects like a mirror. Great decoration.
Approximate dimensions: 5 in diameter x 1/2 in depth. It weights around 3/4 lbs.
It weights around 3/4 lbs.