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Galena Ankerite & Calcite

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EDC663625

Galena Ankerite & Calcite

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Description
Locality: 
Smallcleugh Mine, Nenthead, Cumbria, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 6.5 × 4 cm
Largest Crystal: 
5.00cm
Description

A well formed cluster of intergrown etched galena on a matrix of ankerite with small calcite crystals.  Rear of speicimen shows regrowth of ankerite.

Mineral Data
What's on the rock

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

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

Calcite

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

Current price

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Starting price

$5
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Start 07 Aug 18:00
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Rest Of World
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