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Rock Crystal & Ankerite

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MGR801623

Rock Crystal & Ankerite

Classic Locality

Description Tabs

Description
Locality: 
Elfriede Tunnel, Brandberg, Schwaz District, Tyrol, Austria
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.2 × 7.9 × 5.9 cm
Description

This is really a rare Austrian classic - specimen from Elfriede tunnel are an out-standing rarity. The particular specimen was found in 1984 by the local field collector Gottfried Haas. It shows highly lustrous rock crystals which are partly covered with chatoyant, ivory-colored tiny ankerite crystals. Looks very impressive and it is even better in person.

Mineral Data
What's on the rock

Rock Crystal

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
Hardness: 
0.0

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