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Furutobeite & Chalcocite

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JYJ728523

Furutobeite & Chalcocite

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 3 × 2.9 cm
Description

Analysed specimen hosting parallel striated furutobeite crystals among complex black chalcocite laths. 

Rare mineral!

Mineral Data
What's on the rock

Furutobeite

Formula: 
(Cu,Ag)6PbS4
Strunz: 
2.BE.10
Crystal System: 
Monoclinic
Hardness: 
3.0
Colour: 
Gray
Type Locality: 
Furutobe mine (Furutohbe mine), Kosaka, Akita Prefecture, Tohoku Region, Honshu Island, Japan

Chalcocite

Formula: 
Cu2S
Strunz: 
2.BA.05
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Analysis
Analysis Report - only: Furutobeite & Chalcocite
Analysis Report - only: Furutobeite & Chalcocite
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