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Mimetite Duftite & Gartrellite

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RSL611387

Mimetite Duftite & Gartrellite

Analysed

Description Tabs

Description
Locality: 
Mount Bonnie Mine, Grove Hill, Victoria-Daly Region, Northern Territory, Australia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.6 × 2.2 cm
Largest Crystal: 
0.20cm
Description

In this specimen we can see a rich group of prismatic hexagonal crystals, formed by the prism and pinacoidal terminal faces, with a beige color. SEM-EDS shows that it is a mimetite with some phosphorus but not enough for pyromorphite. Crystals are accomapnied by green duftite and yellowish species close to gartrellite as analytical results have shown. Very interesting and old speciemen from this Australian locality.

Mineral Data
What's on the rock

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

Duftite

Formula: 
PbCu(AsO4)(OH)
Strunz: 
8.BH.35
Crystal System: 
Orthorhombic
Hardness: 
4.5
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Gartrellite

Formula: 
Pb(Cu,Fe3+,Zn)2(AsO4,SO4)2·2(H2O,OH)
Strunz: 
8.CG.20
Crystal System: 
Triclinic
Hardness: 
1.0 - 2.0
Streak: 
Yellow
Type Locality: 
Ashburton Downs Station, Ashburton Shire, Western Australia, Australia
Analysis
Analysis Report - only: Mimetite Duftite & Gartrellite
Analysis Report - only: Mimetite Duftite & Gartrellite
Labels
Label Images - only: Mimetite Duftite & Gartrellite