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Zinkenite & Quartz

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SER977949

Zinkenite & Quartz

ex Americo Urbinati collection

Description Tabs

Description
Locality: 
Calanda, Chur Region, Grisons, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 1.5 × 1.5 cm
Description

a quartz crystal hosting several metallic, elongated crystals of zinckenite

Mineral Data
What's on the rock

Zinkenite

Formula: 
Pb9Sb22S42
Strunz: 
2.JB.35a
Crystal System: 
Hexagonal
Hardness: 
3.0 - 3.5
Type Locality: 
Graf Jost-Christian Mine, Wolfsberg, Stolberg, Harz, Saxony-Anhalt, Germany

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White