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Connellite & Chalcophyllite

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SER614559

Connellite & Chalcophyllite

Description Tabs

Description
Locality: 
Baccu Locci Mine, Villaputzu, Cagliari Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 4.5 × 2.1 cm
Description

Several blue tufts of connellite with green, platy crystals of chalcophyllite

Mineral Data
What's on the rock

Connellite

Formula: 
Cu19(SO4)(OH)32Cl4·3H2O
Strunz: 
3.DA.25
Crystal System: 
Hexagonal
Hardness: 
3.0
Type Locality: 
Wheal Providence, Providence Mines, Carbis Bay, St Ives, St Ives District, Cornwall, England, UK

Chalcophyllite

Formula: 
Cu18Al2(SO4)3(AsO4)3(OH)27·33H2O
Strunz: 
8.DF.30
Crystal System: 
Trigonal
Hardness: 
2.0