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Chrysocolla Psm Gypsum

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PDM753174

Chrysocolla Psm Gypsum

Pseudomorph

Description Tabs

Description
Locality: 
Ray Mine, Pinal County, Arizona, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.5 × 0.5 cm
Description

Parallel group of blue elongated chrysocolla that totally replaces crystals of azurite or probably gypsum.

Acquired in 1984. Ex. Gerard Vogel collection.

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

Gypsum

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

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