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Arsenbrackebuschite Tsumcorite & Mimetite

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UVM606308

Arsenbrackebuschite Tsumcorite & Mimetite

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.2 × 1.6 cm
Description

An excellent specimen featuring orange crystalline arsenbrackebushite on carpets of brown tsumcorite crystals, with extremely fine colorless mimetite crystals.   

Mineral Data
What's on the rock

Arsenbrackebuschite

Formula: 
Pb2Fe3+(AsO4)2(OH)
Strunz: 
8.BG.05
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Tsumcorite

Formula: 
Pb(Zn,Fe3+)2(AsO4)2·2(H2O,OH)
Strunz: 
8.CG.15
Crystal System: 
Monoclinic
Hardness: 
4.5
Streak: 
Yellow
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Mimetite

Formula: 
Pb5(AsO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Treue Freundschaft Mine, Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany

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