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Sphalerite With Calcite

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PJM85125

Sphalerite With Calcite

Ex J & S Mommers Collection.

Description Tabs

Description
Locality: 
Joplin Field, Jasper County, Missouri, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.5 × 2.3 cm
Description

A group of very lusterous resinous black sphalerite crystals on translucent calcite rhombs.

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
Earthstones Australia

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