(Längisalp, Oberwald, Goms, Wallis (Valais), Schweiz (Suisse; Svizzera))
Ref.:
Stalder, H. A., de Quervain, F., Niggli, E., Graeser, S. (1973): Die Mineralfunde der Schweiz, p. 116
Mineral List:10 entries listed. 5 valid minerals.
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