(Zulaufstollen Pfaffensprung-Amsteg, Kraftwerk Amsteg, Amsteg, Reusstal, Uri, Schweiz (Suisse; Svizzera))
A water tunnel feeding the Amsteg power station, cutting through carboniferous metavolcanites of the Aar massif. The minerals reported here were found during its construction.
Mineral List:5 entries listed. 5 valid minerals.
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