Feldspar quarry, Wolfsberg, Spittal an der Drau, Spittal an der Drau District, Carinthia, Austria
Aggregate size 0,8 mm; Chris Auer photo and collection (ex J.Metzger coll.)
© AC
FOV 5 mm; Chris Auer photo and collection (ex A.Pichler coll.)
peter neschen collection (04671a)
© neschen
peter neschen collection (04671b)