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Coquandite

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GMN97866

Coquandite

Classic Locality

Description Tabs

Description
Locality: 
Baia Sprie Mine, Baia Sprie, Maramureș County, Romania
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 0.6 × 0.3 cm
Description

Rare antimony sulphate from the famous Romanian Locality.
This mineral forms white, and yellowish silky spherical crystalline aggregates in the stibnite matrix cavities.

Mineral Data
What's on the rock

Coquandite

Formula: 
Sb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
Strunz: 
7.DE.35
Crystal System: 
Triclinic
Hardness: 
3.0 - 4.0
Type Locality: 
Lucky Knock Mine (Lawrence Mine), Whitestone Coulee, Tonasket, Okanogan Co., Washington, USA

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