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Edwardsite & Lauraniite

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JYJ833205

Edwardsite & Lauraniite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.6 × 1.6 cm
Description

Blue arrow-shaped edwardsite associated with small triangular lauraniite from the Tsumeb mine, Tsumeb, Namibia. SEM-EDS, SCXRD & Raman analysed. 

Other minerals associated are niedermayrite, colourless lazaridisite and powdery white gunningite. 

Analysis in the analyitcal section. 

Mineral Data
What's on the rock

Edwardsite

Formula: 
Cu3Cd2(SO4)2(OH)6·4H2O
Strunz: 
7.DD.30
Hardness: 
3.0 - 0.0
Colour: 
Pale blue
Type Locality: 
Block 14 opencut, Broken Hill, Yancowinna Co., New South Wales, Australia

Lauraniite

Formula: 
Cu6Cd2(SO4)2(OH)12 · 5H2O
Crystal System: 
Monoclinic
Colour: 
Blue
Type Locality: 
Laurani Mine, Laurani District, Aroma Province, La Paz, Bolivia