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Sweden | |
| Holtstam, Dan, Langhof, Jörgen - Eds. (1999) LÄngban - The mines, their minerals, geology and explorers. Raster Förlag; Swedish Museum of Natural History, Stockholm. p.1-216. Gatedal, Kjell (n.d.) Personal Communication. Gatedal, Kjell (n.d.) Personal Communication. |
| Holtstam, D., Langhof, J. (1994) Hancockite from Jakobsberg, Filipstad, Sweden: the second world occurrence. Mineralogical Magazine, 58 (390) 172-174 doi:10.1180/minmag.1994.058.390.18 |
| Nysten, Per (2004) Harstigen ett mineralogisk eldorado i Bergslagen [Harstigen - a mineral eldorado in Bergslagen]. Norsk Bergverksmuseum Skrift, 28. 5-13 |
LĂ„ngban Mine, LĂ„ngban Ore District, Filipstad, VĂ€rmland County, Sweden