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Calumetite

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GFM1086797

Calumetite

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Description Tabs

Description
Locality: 
Rudna Mine, Gmina Polkowice, Polkowice County, Lower Silesian Voivodeship, Poland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2 cm
Description

 Greenish blue Calumetite and brown Goethite, as crust-like aggregates on crystal groups of colorless halite crystals.

Mineral Data
What's on the rock

Calumetite

Formula: 
Cu(OH,Cl)2·2H2O
Strunz: 
3.DA.40
Hardness: 
2.0
Type Locality: 
Centennial Mine, Centennial, Houghton Co., Michigan, USA