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Calcite & Sphalerite

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CAM194542

Calcite & Sphalerite

Description Tabs

Description
Locality: 
Hardin County, Illinois, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.2 × 3.7 cm
Largest Crystal: 
1.50cm
Description

A beautiful specimen from Illinois with highly lustrous dark yellow calcite crystals up to 1.5 cm and small lustrous dark red sphalerite crystals on a matrix of small white dolomite crystals.

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
Cartils Minerals

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