Closed iron mine. The massive magnetite ore horizon is separated from the country rocks (felsic metavolcanics) by schistose zones (sköls) with talc, chlorite, and actinolite.
http://www.minersoc.org/pages/Archive-MM/Volume_49/49-353-611.pdf
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!