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Gypsum : CaSO4·2H2O

Copyright © 2009 Steve Hardinger and Dragon Minerals. All rights reserved.
 
 
 
minID: G35-VVK

Gypsum : CaSO4·2H2O

Copyright © 2009 Steve Hardinger and Dragon Minerals. All rights reserved.  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 5.6 cm x 3.4 cm x 2.2 cm

This specimen consists of light brown, translucent gypsum blades to 1.4 cm width. A few small breaks and minor edge wear -- surprisingly little damage considering the softness of this mineral. Greenish white fluorescence under shortwave UV, with phosphorescence for at least two seconds after the light is removed.

Specimen size: 5.6 x 3.4 x 2.2 cm (2.2 x 1.3 x 0.9 inches)

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Photo added: 21st Mar 2009

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