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3 posts tagged with gypsum. (View popular tags)
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Orda Cave Awareness Project

Russian divers working for the Orda Cave Awareness Project have revealed stunning images of the world's longest underwater cave.
posted by bwg on Jul 12, 2011 - 38 comments

Cavern of Crystal Giants

Crystal Palace. "Cavers in Mexico confront extreme conditions and find extraordinary beauty." (Previously.)
posted by homunculus on Oct 22, 2008 - 34 comments

Fortress of Solitude

The gypsum crystals in the Cave of Crystals at the Naica mine in Chihuahua, Mexico, are some of the largest and most spectacular in the world. [Last link is a .wmv]
posted by dersins on Aug 3, 2007 - 18 comments

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