(Druckstollen der Oberstufe, Mooserboden-Stausee, Kapruner Tal, Hohe Tauern, Salzburg, Österreich)
During the construction of the duct, an epidote-chlorite prasinite layer was cut, which contained brick-red inclusions of manganese minerals.
Ref.:
A. Strasser: Die Minerale Salzburgs (1989)