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Gummite Uraninite & Zircon

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UVM629242

Gummite Uraninite & Zircon

Radioactive

Description Tabs

Description
Locality: 
Ruggles Mine, Grafton, Grafton County, New Hampshire, United States of America
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 3.1 × 2 cm
Description

Yellow to orange masses of "gummite" or undifferentiated secondary uranium minerals associated with brown crystalline zircon and black uraninite.   Beautifully composed, like so many Ruggles specimens.

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

Zircon

Formula: 
ZrSiO4
Strunz: 
9.AD.30
Crystal System: 
Tetragonal
Hardness: 
7.5
Streak: 
White

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