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Coffinite & Montroseite

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SHS122763

Coffinite & Montroseite

Description Tabs

Description
Locality: 
Gateway Mining District, Mesa County, Colorado, United States of America
Size Range: 
Micromount (under 1cm)
Size: 
0.7 × 0.8 × 0.7 cm
Description

Coffinite and montroseite on matrix

Mineral Data
What's on the rock

Coffinite

Formula: 
(U4+,Th)(SiO4)1-x(OH)4x
Strunz: 
9.AD.30
Hardness: 
5.0 - 6.0
Type Locality: 
La Sal No. 2 Mine, Beaver Mesa, Mesa Co., Colorado, USA

Montroseite

Formula: 
(V3+,Fe3+)O(OH)
Strunz: 
4.FD.10
Hardness: 
5.5 - 6.5
Type Locality: 
Bitter Creek Mine, Paradox Valley, Uravan District, Montrose Co., Colorado, USA
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