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Uraninite

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ZSO698790

Uraninite

Radioactive

Description Tabs

Description
Locality: 
Ånnerud Våler, Viken, Norway
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.5 × 0.5 × 0.4 cm
Description

The specimen is free from any matrix and is comprised of four heavily intergrown crystals.
All of the crystals show sharp crystal edges and almost perfectly flat crystal faces.
The main crystal is superbly terminated.

Broggerite is a variety of uraninite containing up to 14% thorium dioxide.  Very nice specimen!

Mineral Data
What's on the rock

Uraninite

Formula: 
UO2
Strunz: 
4.DL.05
Crystal System: 
Isometric
Hardness: 
5.0 - 6.0
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

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