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Fourmarierite Uraninite & Gummite

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PJM41899

Fourmarierite Uraninite & Gummite

Radioactive

Description Tabs

Description
Locality: 
Ruggles Mine, Grafton, Grafton County, New Hampshire, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.2 × 4.6 × 2.8 cm
Description

A very colourful specimen with black uraninite as a background lacy through with yellow gummite and bright orange crystalline groups of fourmarierite.

Mineral Data
What's on the rock

Fourmarierite

Formula: 
Pb(UO2)4O3(OH)4·4H2O
Strunz: 
4.GB.25
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Type Locality: 
Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

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
Earthstones Australia

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