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Leesite & Compreignacite

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JYJ918900

Leesite & Compreignacite

Description Tabs

Description
Locality: 
Jomac Mine, White Canyon, San Juan County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.6 × 0.8 cm
Description

Yellow leesite with compreignacite on gypsum from the Jomac mine, White Canyon, Utah, USA. 

SEM-EDS & XRD conf. no MA636. 

 

Mineral Data
What's on the rock

Leesite

Formula: 
K(H2O)2[(UO2)4O2(OH)5]·3H2O
Crystal System: 
Orthorhombic
Colour: 
Yellow-orange
Type Locality: 
Jomac Mine, White Canyon, White Canyon District, San Juan Co., Utah, USA

Compreignacite

Formula: 
K2(UO2)6O4(OH)6·7H2O
Strunz: 
4.GB.05
Crystal System: 
Orthorhombic
Hardness: 
0.0
Type Locality: 
Margnac Mine, Compreignac, Haute-Vienne, Limousin, France