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Norway | |
| Larsen, Alf Olav, Åsheim, Arne, Gault, Robert A. (2005) Minerals of the eudialyte group from the Sagåsen larvikite quarry, Porsgrunn, Norway. Norsk Bergverksmuseum Skrift, 30. 58-62 |
| Segalstad, T. V. & Larsen, A. O. (1978): Gadolinite-(Ce) from Skien, southwestern Oslo Region, Norway. American Mineralogist 63, 188-195 |
- Kokkersvold - Blåfjell E18 roadcuts
| Grice, J. D., Kristiansen, R., Friis, H., Rowe, R., Poirier, G. G., Selbekk, R. S., Cooper, M. A., Larsen, A. O. (2013) Ferrochiavennite, a new beryllium silicate zeolite from syenite pegmatites in the Larvik Plutonic Complex, Oslo region, Southern Norway. The Canadian Mineralogist, 51 (2) 285-296 doi:10.3749/canmin.51.2.285 |
| Grice, J. D., Kristiansen, R., Friis, H., Rowe, R., Poirier, G. G., Selbekk, R. S., Cooper, M. A., Larsen, A. O. (2013) Ferrochiavennite, a new beryllium silicate zeolite from syenite pegmatites in the Larvik Plutonic Complex, Oslo region, Southern Norway. The Canadian Mineralogist, 51 (2) 285-296 doi:10.3749/canmin.51.2.285 |
| Berge, Svein A. (n.d.) Personal communication. |
| Berge, Svein A. (n.d.) Personal communication. |
| Larsen, Alf Olav, Andersen, Frode, Dahlgren, Sven, Larsen, Knut Edvard, Burvald, Ingulv - Ed. (2010) The Langesundsfjord - History, geology, pegmatites, minerals. Bode Verlag Gmbh. p.1-240. |
| Larsen, Alf Olav (1988) Helvite group minerals from syenite pegmatites in the Oslo Region, Norway. Contribution to the mineralogy of Norway, No. 68. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 68 (2) 119-124 |
| Burvald, Ingulv (1993) To forekomster av nefelin-syenitt-pegmatitt i Telemark, in Telemark II. STEIN. Nordisk magasin for populær geologi, 20 (3) 176-179 |