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Betekhtinite

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CLB167228

Betekhtinite

ex collection Manfred Schaeffer
Rare Mineral

Description Tabs

Description
Locality: 
Dzhezkazgan, Karaganda Oblast, Kazakhstan
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 5.4 × 4.2 cm
Description

A very good specimen of betekhtinite - a rare copper-iron-lead sulfide from a famous discovery at the end of the nineties, which produced the best ones so far. The biggest aggregate of metallic-gray, parallel-grown crystals on the specimen measures 2.2 cm.

Mineral Data
What's on the rock

Betekhtinite

Formula: 
(Cu,Fe)21Pb2S15
Strunz: 
2.BE.05
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 3.5
Colour: 
Black
Streak: 
Black
Type Locality: 
Ernst Thälmann Shaft (Vitzthum Shaft), Hübitz, Siersleben, Mansfeld Basin, Saxony-Anhalt, Germany

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