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Segnitite & Pyromorphite On Germanite

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JYJ723803

Segnitite & Pyromorphite On Germanite

Ge-rich segnitite!

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.6 × 0.3 × 0.4 cm
Description

Germanium rich segnitite in germanite-chalcocite matrix. On the D position are Fe3+, Ge4+, Cu2+,Zn2+ (~50at%).  On X  (XO4) are As,P and Si giving ~33,3at%. The germanium rich segnitite is on pyromorphite. Analysed specimen, analysis attached (last one is for pyromorphite). 

 

Mineral Data
What's on the rock

Segnitite

Formula: 
PbFe3+3(AsO4)2(OH,H2O)6
Strunz: 
8.BL.10
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Kintore opencut, Broken Hill, Yancowinna Co., New South Wales, Australia

Pyromorphite

Formula: 
Pb5(PO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Zschopau, Erzgebirge, Saxony, Germany

Germanite

Formula: 
Cu13Fe2Ge2S16
Strunz: 
2.CB.30
Crystal System: 
Isometric
Hardness: 
4.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia
Analysis
Analysis Report - only: Segnitite & Pyromorphite On Germanite
Analysis Report - only: Segnitite & Pyromorphite On Germanite
Analysis Report - only: Segnitite & Pyromorphite On Germanite
Analysis Report - only: Segnitite & Pyromorphite On Germanite
Analysis Report - only: Segnitite & Pyromorphite On Germanite