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Baryte Ankerite & Chalcopyrite

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SCH548223

Baryte Ankerite & Chalcopyrite

Description Tabs

Description
Locality: 
Dreislar, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 4.6 × 3.1 cm
Description

Lustrous, snow-white, tabular blades of barite beautifully accented by bright, iridescent, golden chalcopyrite crystals and two large groups of stacked chocolate-brown ankerite crystals.

This one is much more 3-dimensional and attractive than most such specimens I have seen, and the speckling of chalcopyrite and ankerite crystals which really offset and highlight the snowy white color of the barite. The piece is almost pristine.

Mineral Data
What's on the rock

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White

Ankerite

Formula: 
Ca(Fe2+,Mg)(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Styrian Erzberg, Eisenerz, Styria, Austria

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0
schani

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