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Calcite With Ankerite

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PCZ727708

Calcite With Ankerite

Description Tabs

Description
Locality: 
Brownley Hill Mine, Nenthead, Cumbria, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 3.5 × 1.5 cm
Description

beautiful sharp, translucent calcite crystals up to 1.2 cm across on a bed of tan coloured ankerite crystals. From a classic British locality. Lovely little display specimen.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
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
Peter Crozier Minerals