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Fermiite & Klaprothite

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JYJ755537

Fermiite & Klaprothite

Description Tabs

Description
Locality: 
Blue Lizard Mine, Red Canyon, San Juan County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.3 × 1.5 cm
Description

Yellow-green fermiite and klaprothite associated with kröhnkite on matrix. Very rare!

Mineral Data
What's on the rock

Fermiite

Formula: 
Na4(UO2)(SO4)3·3H2O
Crystal System: 
Orthorhombic
Type Locality: 
Blue Lizard Mine, San Juan County, Utah, USA

Klaprothite

Formula: 
Na6(UO2)(SO4)4·4H2O
Crystal System: 
Monoclinic
Hardness: 
2.5
Colour: 
Yellowish green
Type Locality: 
Blue Lizard Mine, Red Canyon, San Juan County, Utah, USA
Dimorph Of: 

Péligotite

Formula: 
Na6(UO2)(SO4)4·4H2O
Hardness: 
2.5