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Brannerite & Talc

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CSL625734

Brannerite & Talc

Rare Mineral

Description Tabs

Description
Locality: 
Oberdorf an der Laming, Laming Valley, Bruck-Mürzzuschlag District, Styria, Austria
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.2 × 3.1 cm
Description

This is an interesting specimen with black brannerite (uranium-titanium-oxide) crystal fragments in talc matrix.  

Mineral Data
What's on the rock

Brannerite

Formula: 
(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Strunz: 
4.DH.05
Crystal System: 
Monoclinic - Prismatic
Hardness: 
4.5 - 5.5
Type Locality: 
Kelley Gulch, Stanley, Stanley Basin District, Custer Co., Idaho, USA

Talc

Formula: 
Mg3(Si4O10)(OH)2
Strunz: 
9.EC.05
Crystal System: 
Triclinic
Hardness: 
1.0
Streak: 
White
Loranth Minerals

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