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Gypsum : CaSO4·2H2O

Copyright © Rock Currier
 
 
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Gypsum : CaSO4·2H2O

Copyright © Rock Currier  - This image is copyrighted. Unauthorized reproduction prohibited.

Gypsum. Specimen is from the collection of J. Areson (1973). Scale at bottom of image is an inch with a rule at one cm.

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Photo added: 30th Apr 2010