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Petscheckite

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UVM662102

Petscheckite

Radioactive

Description Tabs

Description
Locality: 
Håkonhals Quarry, Finnøya, Hamarøy, Nordland, Norway
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 2.2 × 0.6 cm
Description

A massive specimen of petscheckite, possibly intergrown with allanite, from Norway.   Petscheckite is a rare oxide of uranium, iron, niobium, and tantalum that is only known from 6 localities worldwide.

Mineral Data
What's on the rock

Petscheckite

Formula: 
UFe(Nb,Ta)2O8
Strunz: 
4.DH.35
Hardness: 
5.0
Colour: 
Black
Type Locality: 
Antsakoa I pegmatite, Berere Pegmatite Field, Tsaratanàna District, Betsiboka Region, Mahajanga Province (Majunga), Madagascar

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