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Thénardite Psm Mirabilite

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ESM642586

Thénardite Psm Mirabilite

Description Tabs

Description
Locality: 
Boron, Kern County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
3 × 7 × 5 cm
Description

A cluster of hoppered mirabilite crystals pseudomorphed by thenardite

Mineral Data
What's on the rock

Thénardite

Formula: 
Na2SO4
Strunz: 
6/A.07-10
Crystal System: 
Orthorhombic
Hardness: 
2½ - 3
Colour: 
Colourless, very light grey, light brown; colourless in transmitted light

Mirabilite

Formula: 
Na2SO4·10H2O
Strunz: 
7.CD.10
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Streak: 
White