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Calcite With Chalcopyrite

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PCZ775181

Calcite With Chalcopyrite

Description Tabs

Description
Locality: 
Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 2.8 × 1.8 cm
Description

One from my own collection. Two common minerals but combined in a very pretty specimen. Lovely little display.

Mineral Data
What's on the rock

Calcite

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0
Peter Crozier Minerals