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Weeksite & Mimetite

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SHS149156

Weeksite & Mimetite

Description Tabs

Description
Locality: 
Muggins Mts., Yuma County, Arizona, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.5 × 1.1 cm
Description

Weeksite and mimetite on matrix

Mineral Data
What's on the rock

Weeksite

Formula: 
K2(UO2)2(Si5O13)·4H2O
Strunz: 
9.AK.30
Hardness: 
1.0 - 2.0
Colour: 
Yellow
Type Locality: 
Autunite No. 8 claim, Topaz Mountain, Thomas Range, Juab Co., Utah, USA

Mimetite

Formula: 
Pb5(AsO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Treue Freundschaft Mine, Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany
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