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Gypsum : CaSO4·2H2O
minID: X2J-XAM

Photo Copyright © Dan & Diana Weinrich Minerals  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 5.6 cm x 4.2 cm x 3.8 cm

A showy and aesthetic cluster of brownish "hour-glass" double terminated gypsum crystals, these to 5.0 cm in length, measuring 5.6 x 4.2 x 3.8 cm in size overall. These are known locally as "sand selenite"; the hour-glass patterns are due to inclusions of sand within the colorless gypsum crystals. No damage. Ex Gene and Sally LaBerge collection.

This photo has been shown 270 times

Photo added: 27th May 2009

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