(Ortberg (Birnbacher), Naßfelder Tal, Gasteiner Tal, Hohe Tauern, Salzburg, Österreich)
Mineralized clefts in gneisses of the Siglitz formation.
Located on Ortberg mountain (locally known as 'Birnbacher'), on the northwestern side of the Naßfeld valley.
References:
A. Strasser: Die Minerale Salzburgs, 1989
Mineral List:4 entries listed. 1 valid mineral.
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