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Formanite-(Y)

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SKY1153782

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Description
Locality: 
Cooglegong Pegmatite, Shaw River, East Pilbara Shire, Western Australia, Australia
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.15 × 0.1 × 0.1 cm
Description

Several brown / black single crystals of the very rare yttrium tantalate mineral formanite-(Y) from the TL in Australia in a capsule. Some of the grains maybe Tanteuxenite-(Y), that it is closely found jointly with formanite-(Y) in the TL.

Formanite-(Y) from the TL is never seen in the mineral market since all the specimens in the market are from Sweden.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

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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Start 03 Dec 18:00
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Spain
7
Europe
9
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20
Rest of the World
10

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