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Yttrotantalite-(Y) & Bismite

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UVM602292

Yttrotantalite-(Y) & Bismite

Description Tabs

Description
Locality: 
Rare Metals Mine, Wikieup, Mohave County, Arizona, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.4 × 2.2 cm
Description

Reddish crystalline yttrotantalite-(Y) with green micro smears of bismite.  

Mineral Data
What's on the rock

Yttrotantalite-(Y)

Formula: 
(Y,Ca,U4+,Fe2+)2(Ta,Nb)2O8
Strunz: 
4.DG.10
Hardness: 
5.0 - 5.5
Streak: 
Grey
Type Locality: 
Ytterby, Resarö, Vaxholm, Uppland, Sweden

Bismite

Formula: 
Bi2O3
Strunz: 
4.CB.60
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Colavi Mine, Machacamarca District (Colavi District), Cornelio Saavedra Province, Potosí Department, Bolivia

Seller Information

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