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Marécottite

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JYJ957951

Marécottite

Description Tabs

Description
Locality: 
Johannes Evangelista Vein, Svornost Mine, Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 3.5 × 3 cm
Description

Yellow marecottite from the Johannes Evangelista vein, Jáchymov, Czech Republic. 

SEM-EDS & SXRD no MA1562. 

Analysis on request. 

 

Mineral Data
What's on the rock

Marécottite

Formula: 
Mg3(UO2)8(SO4)4O6(OH)2·28H2O
Strunz: 
7.EC.15
Crystal System: 
Triclinic
Hardness: 
3.0 - 0.0
Streak: 
colorless
Type Locality: 
La Creusa U prospect (La Creusaz U prospect), Les Marécottes, Le Trient Valley, Wallis (Valais), Switzerland