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Polycrase-(Y) & Aeschynite-(Y)

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SER624960

Polycrase-(Y) & Aeschynite-(Y)

Description Tabs

Description
Locality: 
Seula Mine, Mount Camoscio, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.5 × 1.5 cm
Description

Here what we call polycrase but should be analysed because shows different colours (could be a mixture with also uranpolycrase); the crystal hosts some orange aeschynite-Y, tiny crystals,  at 90°; self collected on 1999

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

Aeschynite-(Y)

Formula: 
(Y,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
Strunz: 
4.DF.05
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 6.0
Type Locality: 
Urstad Feldspar Mine, Hidra (Hitterø), Flekkefjord, Vest-Agder, Norway

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Start 27 Feb 18:00
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