Pyrite, Sphalerite, Diopside
Marble quarries, Winkl, Röhrenbach, Horn District, Lower Austria, Austria
Collomorphic pyrite (grey) with some sphalerite (grey, at right edge) and diopside (dark, bottom right).
SEM photo (SE mode).
This material is described in:
Kolitsch, U. (2015): 1941) Aktinolith, Aragonit, Baryt, Fluorapatit, Gips und Siderit aus den Marmorbrüchen bei Winkl, Waldviertel, Niederösterreich. P. 252 in Niedermayr, G. et al. ...
© Uwe Kolitsch