(Gebiet Grieswies - Krumlkeeskopf, Hüttwinkltal, Rauriser Tal, Hohe Tauern, Salzburg, Österreich)
Within this zone, extending west of the upper Hüttwinkl valley and south of the Ritterkopf massif into the upper Krumlbach valley, penninic amphibolites, chlorite schists, micaschists, phyllites, prasinites, quartzites, as well as triassic lime and dolomite marbles (Seidlwinkl formation) alternate in a rapid succession. In some places, such as the cliffs of the Grieswies, the different layers are well exposed over a height of up to several hundred meters. This area is very rich in mineralized clefts, which yielded many specimens of outstanding size and quality.
Ref.: A. Strasser: Die Minerale Salzburgs (1989)
