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Umohoite & Nickelzippeite

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JYJ917035

Umohoite & Nickelzippeite

Description Tabs

Description
Locality: 
Shinkolobwe Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.5 × 0.4 × 0.4 cm
Description

Brownish green umohoite with yellow nickelzippeite, siegenite  matrix. 

SEM-EDS & SXRD confirmed specimen no 1484. 

Comes with a colour printed analysis. 

 

Mineral Data
What's on the rock

Umohoite

Formula: 
(UO2)MoO4·2H2O
Strunz: 
4.GC.10
Crystal System: 
Monoclinic
Hardness: 
2.0
Type Locality: 
Freedom No. 2 Mine, Marysvale District (Marysvale Uranium area), Piute Co., Utah, USA

Nickelzippeite

Formula: 
Ni(UO2)2(SO4)O2·3.5H2O (?)
Group Parent: 
Zippeite Group
Strunz: 
7.EC.05
Crystal System: 
Monoclinic
Hardness: 
5.0 - 5.5
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic