Black Obsidian Crystal Skull with Hair DD3807 UV Due to its relative hardness

Due to its relative hardness and durability

also known as Ethiopian Opal

This specimen contains one large moving enhydro

as shown in the first two photos

Black Obsidian Crystal Skull with Hair DD3807 UV Due to its relative hardness4. 5" Black Obsidian Skull with Hair Approx. Dimensions: 4. 5 x 4 x 4" Approx. Weight: 1. 1kg (2 lb 7 oz) Obsidian is formed when lava extruded from volcanos rapidly cools with little to no crystal growth. The high silica content of the lava it forms from gives obsidian its smooth, glassy texture and look. Obsidian is a very hard and brittle stone, and fractures with sharp edges. Obsidian is not a true mineral due to its lack of a crystalline