“SEM-EDS image (BSE mode) of a polished section showing a subhedral, rounded gudmundite grain (grey, centre), euhedral pyrite crystals (dark grey), minor small pyrrhotite (bit brighter than the pyrite), quartz (dark) and boulangerite (bright grey, e.g. top right) in galena (bright). This sample was described in: Kolitsch, U. (2020): 2166) Cassiterit, Chamosit, Dravit, Fluorapatit, Monazit-(Ce), Paragonit, Schörl, Stilpnomelan(?), Ullmannit, Uraninit, Willyamit, Xenotim-(Y) und Zirkon von der Kieslagerstätte im Rettenbachgraben bei Mittersill, Salzburg. Pp. 178-181 in Walter, F. et al. (2020): Neue Mineralfunde aus Österreich LXIX. Carinthia II, 210./130., 153-218. ”