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Polycrase-(Y)

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PAV940222

Polycrase-(Y)

Classic Locality

Description Tabs

Description
Locality: 
Lombadas, Ribeira Grande, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.8 × 1.6 cm
Description

Two nice groups of polycrase-(Y) 'AKA' euxenite-(Y) on black fero katophorite. In the bottom we can see some aegirine fibers with some orange pyrochlore attached.

Collected: 
2015
Boxed with Label
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