Penning-gruvorna
Until the discovery of Vingesbacke in 1945 one of the most important mines in the Hofors-Torsåkers bergslag. In production from ~1730.
References
- Wik, N.-G., Albrecht, L.,Bergman,S., Kübler, L.& Sundberg. A. (2009): Malmer, industriella mineral och bergarter i Gävleborgs län. Sveriges Geologiska Undersökning (SGU). Rapporter och meddelanden, 130, 310p
- Asklund, Sandegren. Bladet Storvik Aa 176.1934
Mineral List
12 entries listed. 8 valid minerals.
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