Arsenopyrite, Gold, Pyrite
Güldenstern Mine, Neualbenreuth, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
The microstructure of gold ore from the Neualbenreuth mining area, Bavaria.
Cross-section through a typical gold-bearing nodule of arsenopyrite (light grey), with minor pyrite (pale yellow), in matrix of fine-grained, fine-folded muscovite schist, stained by iron hydroxides (spotty brown to yellow). The nodule suffered extremely strong brittle ...
© Günter Grundmann, Detmold, Germany