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Oursinite & Becquerelite On Uraninite

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PDM878871

Oursinite & Becquerelite On Uraninite

Type Locality

Description Tabs

Description
Locality: 
Shinkolobwe Mine, Shinkolobwe, Kambove, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.6 × 0.5 × 0.5 cm
Description

From the type locality, straw-yellow acicular to hairy radiating crystal aggregates richly intergrown with very good crystals of orange becquerelite on black uraninite.

Ex Walter Storme collection, a chemical engineer who was working in Zaire from 1981 to 1992.

Mineral Data
What's on the rock

Oursinite

Formula: 
(Co,Mg)(UO2)2[HSiO4]2·6H2O
Strunz: 
9.AK.10
Hardness: 
3.0 - 3.5
Type Locality: 
Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Becquerelite

Formula: 
Ca(UO2)6O4(OH)6·8H2O
Strunz: 
4.GB.10
Crystal System: 
Orthorhombic
Hardness: 
2.5
Streak: 
Yellow
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

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