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Gummite Uraninite & Zircon

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SCH33511

Gummite Uraninite & Zircon

Description Tabs

Description
Locality: 
Ruggles Mine, Grafton, Grafton County, New Hampshire, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3 × 2.8 cm
Description

A very rich and colorful specimen of massive, black uraninite and yellow to green, secondary uraninite alteration products or "gummite" associated with much dark brown zircon.

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
schani

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