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RM1599   Chalcopyrite

Friedrich-Wilhelm Mine, Herdorf, Siegerland, Rhineland-Palatinate, Germany

Rich group of chalcopyrite crystals, very brilliant, of intense luster and gold to bronze tones. They stand out for the richness of crystal facets, that show us very defined sphenoidal forms, some dipyramids and basal pinacoids, complex but identifiable. To enjoy crystallography... A specimen of a German locality not well represented in collections.


Size: 6.0 x 5.0 x 4.5 cm.
Main crystal: 5 x 4 mm.

 

RM1531   Galena with tetrahedrite, chalcopyrite and siderite

Pfannenberger Einigkeit Mine, Salchendorf, Neunkirchen, Siegerland, North Rhine-Westphalia, Germany

The galena specimens from this classic German mine are known for the size of the crystals and twins. In this sample both characteristics are fulfilled. We can observe interpenetrated crystals according to the spinel twin law and other crystals shoewing the cube and octahedron faces. On matrix with tetrahedrite crystals partially covered by brilliant chalcopyrite and some siderite. They stand out for their size and quality. On a matrix with pyrite and siderite crystals.
This piece is from the collection of Renaud Vochten (1933-2012), a well-known Belgian collector of mineralogical rarities and it was in the collection of the University of Gent. An unusual opportunity to get an excellent sample of this classic European mine.


Size: 9.0 x 6.8 x 4.0 cm.
Main crystal: 32 x 25 mm.
Found in ±1996

Excol. Gent University - Excol Renaud Vochten


 
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