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Fermiite & Péligotite

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JYJ740528

Fermiite & Péligotite

Description Tabs

Description
Locality: 
Blue Lizard Mine, Red Canyon, San Juan County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.8 × 0.8 cm
Description

Neon-green fermiite associated with klaprothite on kröhnkite and minor manganoblödite. 

From analysed material, rare mineral!

 

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

Péligotite

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

Klaprothite

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