Exploration of historical mining site - Akersberg silver mines (St. Hanshaugen, Oslo, Norway, 04/11/2024)

<p>Exploration of the historical mining site of Akesrberg (St. Hanshaugen, Oslo, Norway, 04/11/2024)</p> <p>- Main ore minerals: pyrite, sphalerite, galena, chalcopyrite, argentite, stembergite</p> <p>- Provisional References:</p> <ul> <li>https://www.researchgate.net/publication/330971315_Akersberg_gruver_Akersberg_Silver_Mines_pages_168-174_in_Arnesen_R_Gjemte_og_glemte_steder_-_urban_utforsking_i_Oslo_og_omradet_rundt_In_Norwegian</li> <li>https://foreninger.uio.no/ngf/ngt/pdfs/NGT_71_2_121-128.pdf</li> <li>https://www.mindat.org/loc-37117.html</li> <li>https://no.wikipedia.org/wiki/Akersberg_gruver</li> </ul>