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Smithsonite Psm Calcite

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PDM586574

Smithsonite Psm Calcite

Pseudomorph

Description Tabs

Description
Locality: 
San Giovanni Mine, Punta della Torre, Iglesias, Carbonia-Iglesias Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
15.8 × 8.4 × 5.4 cm
Largest Crystal: 
3.20cm
Description

Brown hollow groups of smithsonite microcrystals replacing scalenoedral calcite crystals. A good size sample from a classic locality of Sardinia.

Ex. Iván Blanco (ES) collection.

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

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