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Velikite & Kësterite

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JYJ878391

Velikite & Kësterite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 0.9 × 0.6 cm
Description

Grey to yellowish tennantite-Zn with chalcocite and pink patches of zincobriartite/kesterite (core) and velikite (rim) from the famous Tsumeb mine, Namibia. 

SEM-EDS confirmed material. Comes with a printed copy of the analysis. 

 

Mineral Data
What's on the rock

Velikite

Formula: 
Cu2HgSnS4
Strunz: 
2.CB.15a
Hardness: 
4.0
Colour: 
Dark gray
Type Locality: 
Khaidarkan Sb-Hg deposit (Chaidarkan), Fergana Valley, Alai Range (Alay Range), Osh Oblast, Kyrgyzstan

Kësterite

Formula: 
Cu2(Zn,Fe)SnS4
Strunz: 
2.CB.15a
Hardness: 
4.5
Streak: 
Black
Type Locality: 
Këster Deposit (Kester Deposit), Arga-Ynnakh-Khaya granite Massif, Yana-Adycha Region, Yana River Basin, Verkhoyansk, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia