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Leesite & Boltwoodite

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JYJ687445

Leesite & Boltwoodite

Type Locality

Description Tabs

Description
Locality: 
Jomac Mine, White Canyon, San Juan County, Utah, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 1.8 × 1.1 cm
Description

Confirmed leesite with boltwoodite on colourless gypsum and white felsöbanyaite. See original description for comparable SEM-EDS images. 

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

Boltwoodite

Formula: 
(K,Na)(UO2)[HSiO4]·0.5H2O
Strunz: 
9.AK.15
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Pick's Delta Mine (Delta Mine; Pick's Mine), Delta, San Rafael District (San Rafael Swell), Emery Co., Utah, USA...