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Polycrase-(Y)

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JYJ1056625

Polycrase-(Y)

Description Tabs

Description
Locality: 
Independence (Independence Pass), Columbia Mining District (Ashcroft Mining District), Pitkin County, Colorado, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3 × 2.5 cm
Description

Brown elongated polycrase-(Y) from the Independence pass, Pitkin Co., USA. 

Rare mineral.

 

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