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You are here: Index  Random GemstoneObsidianThe commonest type of volcanic glass, usually black, but sometimes red or brown in colour formed by the rapid cooling and solidification of granite magma. Properties 
Etymology after Obsius, a Roman who supposedly discovered it or a similar mineral. Origin of the word Obsidian at Etymonline.com General Reference Obsidian at Wikipedia Images Google Image Search for Obsidian Yahoo Image Search for Obsidian  Books about Gemstones
You are here: Index  Shamanism and Magick Gemstone Therapy 
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