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Yttrobetafite-(Y) & Polycrase-(Y)

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SHS207204

Yttrobetafite-(Y) & Polycrase-(Y)

Description Tabs

Description
Locality: 
Frikstad Quarries, Iveland, Agder, Norway
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 2.2 × 2.2 cm
Description

 Yttrobetafite y and polycrase y in matrix

Mineral Data
What's on the rock

Polycrase-(Y)

Formula: 
(Y,U)(Ti,Nb)2O6
Strunz: 
4.DG.05
Hardness: 
5.0 - 6.0
Colour: 
Black
Type Locality: 
Rasvåg feldspar quarries, Hidra (Hitterø), Flekkefjord, Vest-Agder, Norway