New data on sulfosalts from the hydrothermal siderite-type veins in the Spišsko-gemerské rudohorie Mts. (eastern Slovakia): 5. Minerals of the kobellite-tintinaite series from the Majerská dolina ore occurrence near Čučma

Abstract

A new occurrence of minerals of the kobellite-tintinaite series was recently discovered at the Majerská dolina siderite-type hydrothermal ore occurrence near Čučma, Spišsko-gemerské rudohorie Mts., Rožňava Co., Košice Region, Slovakia. Minerals of the kobellite-tintinaite series occur in quartz gangue as acicular to prismatic crystals up 5 mm long, associated together with arsenopyrite, pyrite and chalcopyrite. The calculated value of N for studied samples is ranging from 1.91 to 2.00 and the Sb/(Sb+Bi) atomic ratio in three studied samples varies between 0.41 and 0.52, hence corresponding mostly to Sb-rich kobellite, with a few analyses representing Bi-rich tintinaite.