Bismuth, Emplectite, Chalcopyrite, Wittichenite, Bornite, Baryte, Goethite
Daniel Mine, Gallenbach valley, Wittichen, Schenkenzell, Rottweil, Freiburg Region, Baden-Württemberg, Germany
Crystals of emplectite (greenish-grey), partially decomposed to a mixture of wittichenite (light-grey), bornite (brownish), chalcopyrite (greenish-yellow), native bismuth (crème-white), and goethite (medium-grey), in baryte gangue (almost black). Reflected plane polarized light digital image. Width of image 0.2 mm.
G. Grundmann collection and ...
© Günter Grundmann, Detmold