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Libethenite & Pseudomalachite

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PDM784035

Libethenite & Pseudomalachite

Description Tabs

Description
Locality: 
Star of the Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.9 × 1.7 cm
Weight: 
64.00gr
Description

Sharp lustrous, dark green gemmy crystals of libethenite well exposed off the matrix. They have a quite regular size of 0.7 to 0.8 mm, and are associated to dark green globular clusters of pseudomalachite.

Specimen #21 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 socle from the collection made of wood from Congo.

Mineral Data
What's on the rock

Libethenite

Formula: 
Cu2(PO4)(OH)
Strunz: 
8.BB.30
Crystal System: 
Monoclinic
Hardness: 
4.0
Type Locality: 
Podlipa deposit, Ľubietová (Libetbánya; Libethen), Banská Bystrica Co., Banská Bystrica Region, Slovakia

Pseudomalachite

Formula: 
Cu5(PO4)2(OH)4
Strunz: 
8.BD.05
Crystal System: 
Monoclinic
Hardness: 
4.0 - 4.5
Type Locality: 
Virneberg Mine (St Josephsberg Mine), Rheinbreitbach, Linz am Rhein, Westerwald, Rhineland-Palatinate, Germany

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