(Gruben am Strubberg (einschl. Sattelberg; Strubbergsattel; Unterberg), Tennengebirge, Abtenau, Salzburg, Österreich)
Manganese deposit in siliceous marls, worked by different now long abandoned mines on the northern slopes of Strubberg, Sattelberg and Unterberg mountains. Located 2.5 km SW to 4 km WSW of Abtenau, in the northern Tennen Mts.
Ref.: A. Strasser: Die Minerale Salzburgs, 1989