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Rutherfordine On Uraninite

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PDM739394

Rutherfordine On Uraninite

Type Locality

Description Tabs

Description
Locality: 
Uluguru Mountains, Morogoro Region, Tanzania (United Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.3 × 2.2 cm
Description

Dull coating of greenish-yellow rutherfordine that covers completely large uraninite cubes of more than 3.5 cm of edge. Rare representative specimen from the type locality for rutherfordine, with some orange and yellow gummite. Radioactive material from Tanzania is very rare in collections.

Includes an old label handwritten by Delvaux. The sample was collected in 1963 by Professor A. Delvaux (1919-1998).

Mineral Data
What's on the rock

Rutherfordine

Formula: 
(UO2)CO3
Strunz: 
5.EB.05
Crystal System: 
Orthorhombic
Hardness: 
0.0
Streak: 
White
Type Locality: 
Lukwengule, Uluguru Mts (Uruguru Mts), Morogoro Region, Tanzania

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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