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Berzelianite & Calcite

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Berzelianite & Calcite

Type Locality
With Antique Label

Description Tabs

Description
Locality: 
Skrikerum Mine, Valdemarsvik, Östergötland County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4 × 4.4 cm
Description

Very nice and pretty big specimen of black Berzelianite inclusions in white Calcite from Type Locality - Skrikerum Mine (Sweden) - where the first mineral containing Se was first discovered and described. Specimen was not tested so presence of other Se minerals like Crookesite, Umangite, Eukairite or even rarer is very likely. Comes with nice, historic label in very good condition.

Ex Mineralien-Niederlage d. Bergakademie Freiberg (Saxony, Germany)

Mineral Data
What's on the rock

Berzelianite

Formula: 
Cu2Se
Strunz: 
2.BA.20
Crystal System: 
Isometric
Hardness: 
2.0
Streak: 
Shining
Type Locality: 
Skrikerum Mine (Skrickerum Mine), Valdemarsvik, Östergötland, Sweden

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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