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Uraninite

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UVM732209

Uraninite

Radioactive

Description Tabs

Description
Locality: 
Andrews Quarry, Portland, Middlesex County, Connecticut, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.9 × 1.4 × 1.8 cm
Description

A mass of black uraninite, plus another showing cubic form, in matrix.   A rare specimen from this historic locality.

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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