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Smithsonite Psm Dolomite

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JYJ76226

Smithsonite Psm Dolomite

Description Tabs

Description
Locality: 
Rush, Rush Creek District, Marion County, Arkansas, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 1.7 cm
Largest Crystal: 
0.60cm
Description

This specimen shows casts of bright yellow, cadmium-rich smithsonite pseudomorphing saddle-shaped dolomite crystals. One side of the specimen is cut.

Mineral Data
What's on the rock

Smithsonite

Formula: 
ZnCO3
Strunz: 
5.AB.05
Hardness: 
4.0 - 4.5
Streak: 
White

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White