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Norway | |
| Brøgger, W.C., Reusch, H.H. (1875) Vorkommen des Apatit in Norwegen [Apatite deposits in Norway]. Zeitschrift der Deutschen Geologischen Gesellschaft, 27. 646-702 |
| Geological Survey of Norway (NGU). The Ore Database (Malmdatabasen). Deposit Area 814 - 031. Isnes. |
| Brøgger, W.C. & Rath, G. vom (1885): On certain large crystals of Enstatite…, Mineralogical Magazine, 6, 14-23 |
| aps.ngu.no (n.d.) https://aps.ngu.no/pls/oradb/minres_deposit_fakta_NY_KS.Main?p_objid=5564&p_spraak=E |
| aps.ngu.no (n.d.) https://aps.ngu.no/pls/oradb/minres_deposit_fakta_NY_KS.Main?p_objid=5559&p_spraak=E |
| Geological Survey of Norway (NGU). The Industrial Mineral Database. Deposit Area 815 - 331. Risøy |
| aps.ngu.no (n.d.) https://aps.ngu.no/pls/oradb/minres_deposit_fakta.Main?p_objid=8526&p_spraak=E |
| Weibye, P.C. (1846): Polychroilith, ein neues Mineral. Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefakten-Kunde. 1846, 289-292. + Tafel IIa |
- Dalane copper and silver mines
| Helvig Hansen, G. (1984): Guide til mineralforekomster i Tokke, Nissedal, Kvitseid og Drangedal kommuner i Vest-Telemark. 30p. (p. 18-19) |
| Geological Survey of Norway (NGU). The Ore Database (Malmdatabasen). Deposit Area 829 - 032. Byggland. |
| Scheerer, Th. (1843) Ueber den Wöhlerit, eine neue Mineralspecies. Annalen der Physik und Chemie, 135. 327-336 doi:10.1002/andp.18431350611 |
| Knut Edvard Larsen (2023) Collection. |
| Larsen, Alf Olav (1993) Gruver og skjerp i Skien [Mines and Prospects in Skien], Alf Olav Larsen. 1-72 |
| Geological Survey of Norway (NGU). The Ore Database. Deposit Area 833 - 042. Åmdal |
| Geological Survey of Norway (NGU). The Ore Database. Deposit Area 833 - 042. Åmdal |