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Allanite-(Y)

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SHS174952

Allanite-(Y)

Description Tabs

Description
Locality: 
Trimouns, Luzenac, Ariège, Occitanie, France
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1 × 0.4 cm
Description

Allanite y on matrix

Mineral Data
What's on the rock

Allanite-(Y)

Formula: 
{CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Colour: 
Black