Obsidian
Last update: Friday 25th of May 2012
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Obsidian
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with ...
Obsidian - Wikipedia, the free encyclopedia
Obsidian.net is the home for Obsidian Entertainment, developer of Neverwinter Nights 2, Star Wars Knights of the Old Republic II, Alpha Protocol, Fallout: New Vegas ...
Obsidian Entertainment
Obsidian is an igneous rock, a volcanic glass used for thousands of years to make cutting tools.
Obsidian: Igneous Rock - Pictures, Uses, Properties
Obsidian is the result of volcanic lava coming in contact with water. Often the lava pours into a lake or ocean and is cooled quickly. This process produces a ...
OBSIDIAN (Volcanic Silica Glass) - Amethyst Galleries' Mineral Gallery
Volcanic glass - a rock rather than a mineral, it is a mixture of cryptocrystalline grains of silica minerals in a glass-like suspension, a super-cooled liquid.
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