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Gypsum

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CFL711225

Gypsum

Description Tabs

Description
Locality: 
South Dakota, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.2 × 2.6 cm
Weight: 
70.00gr
Description

Interesting gypsum specimen from an undocumented locality in South Dakota.  Ex-Don Davis specimen.  Collected by Don Davis.

Mineral Data
What's on the rock

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

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