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Sphalerite & Calcite

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ESM668447

Sphalerite & Calcite

Description Tabs

Description
Locality: 
Cumberland Mine, Smith County, Tennessee, United States of America
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
5 × 12 × 8.5 cm
Description

Lustrous ruby-jack sphalerite crystal clusters on a quartz-covered limestone matrix with minor calcite crystals

Mineral Data
What's on the rock

Sphalerite

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

Calcite

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