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Calcite On Sphalerite

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PJM79573

Calcite On Sphalerite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
Cessford Quarry, Biggsville, Henderson County, Illinois, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.1 × 1.5 cm
Description

An arch of interlinking translucent calcite crystals spans the centre of a cluster of dark resinuos sphalerite crytslas

Mineral Data
What's on the rock

Calcite

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0
Earthstones Australia

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