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Fermiite & Oppenheimerite

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JYJ669092

Fermiite & Oppenheimerite

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: 
1.9 × 1.5 × 0.9 cm
Description

Very good intense green fermiite (pics 1-5) with typical prismatic faces

({011}, {01-1}) and yellow-green oppenheimerite (pics. 7-8) showing more complex crystal faces.

Last two detail images show another yet unidentified mineral with angles close to 90° (possibly peligotite or klaprothite).

 

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

Oppenheimerite

Formula: 
Na2(UO2)(SO4)2·3H2O
Crystal System: 
Triclinic
Type Locality: 
Blue Lizard Mine, San Juan County, Utah, USA