Unique Large Blue ocean Glass Obsidian from Java

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Unique large Blue ocean Glass Obsidian From Java A wonderful world is in this Glass Measures 14cmX11 cm X13cm Generally, obsidian in blue form appears as a pale blue rock form that looks very much like glass. Obsidian is a silica rich volcanic rock. It occurs when viscous lava cools at a very rapid rate, provided it is rich in silica, low in water, and offers a chemical disposition that is very close to that of rhyolite. Protective and calming energy Show more