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Smithsonite Psm Calcite & Gypsum

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CLB581229

Smithsonite Psm Calcite & Gypsum

Pseudomorph

Description Tabs

Description
Locality: 
San Antonio Mine, East Camp, Santa Eulalia, Aquiles Serdán Municipality, Chihuahua, Mexico
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.1 × 1.7 cm
Description

Greenish yellow smithsonite (with copper and cadmium?) starting to replace calcite crystals. On top waterclear gypsum crystals. A very fine and unique specimen.

Mineral Data
What's on the rock

Smithsonite

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

Calcite

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

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Streak: 
White.

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