Cinnabar, Arsenopyrite, Chalcopyrite, Tetrahedrite Subgroup
Knappagruaba, Bartholomäberg, Bludenz District, Vorarlberg, Austria
Tiny cinnabar grain (white), intergrown with two grains of chalcopyrite (very dark grey) and one grain of arsenopyrite (dark grey), all as inclusions in a tetrahedrite grain (grey).
The occurrence is described in
Kolitsch, U. (2014): 1856) Bismuthinit, Cinnabarit, Fluorapatit und Olivenit von den Knappagruaba am Bartholomaberg, Montafon, ...
© Uwe Kolitsch