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Ankerite Quartz & Chalcopyrite

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PJM75301

Ankerite Quartz & Chalcopyrite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 4.1 × 2.9 cm
Description

Two pale pinkish fans of ankerite sit atop chalcopyrite crystals and have doubly terminated quartz crystals scatered about. The ankerite appear to be hollow or at least partially so and are most likely psuedomorphs of an earlier carbonate. The silky lustre of the fans help create a very pleasing three dimensional specimen when viewed frm any angle.

Acquired in 2004 from the Brian Shelton Collection

Mineral Data
What's on the rock

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

Quartz

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

Chalcopyrite

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

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