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Formanite-(Y)

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SMM733142

Formanite-(Y)

Rare Mineral

Description Tabs

Description
Locality: 
Ytterby, Resarö, Vaxholm, Stockholm County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Micromount (under 1cm)
Size: 
0.8 × 0.5 × 0.8 cm
Description

Beige crystalline formanite-(Y) with dark tanteuxenite-(Y) from a historical Norwegian locality. Uncommon!

 

Boxed with Label
Mineral Data
What's on the rock

Formanite-(Y)

Formula: 
YTaO4
Strunz: 
7.GA.10
Crystal System: 
Tetragonal Usually metamict
Hardness: 
5.5 - 6.5
Type Locality: 
Cooglegong pegmatite field, Shaw River District, East Pilbara Shire, Western Australia, Australia

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