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Carrollite With Chalcocite

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PDM728218

Carrollite With Chalcocite

Description Tabs

Description
Locality: 
Kambove, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 3.8 × 2.2 cm
Description

Euhedral carrollite crystals in a matrix of white calcite, associated to flat dull black chalcocite.

Specimen #64 from the collection of Eudore Toussaint, a Belgian Chemical Engineer in the D.R.Congo from 1948 to 1971.

It comes with the original old wood socle from the collection.

Mineral Data
What's on the rock

Carrollite

Formula: 
Cu(Co,Ni)2S4
Strunz: 
2.DA.05
Crystal System: 
Isometric
Hardness: 
4.5 - 5.5
Type Locality: 
Patapsco mine (Finksburg Mine; Orchard Mine), Patapsco Mines, Finksburg, Sykesville, Carroll Co., Maryland, USA

Chalcocite

Formula: 
Cu2S
Strunz: 
2.BA.05
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0

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