Pyrophanite from selected localities.
Norway | |
| Segalstad, T. V. & Larsen, A. O. (1978): Gadolinite-(Ce) from Skien, southwestern Oslo Region, Norway. American Mineralogist 63, 188-195 |
| 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. Canadian Mineralogist. 51: 285-296 |
| Burvald, Ingulv (1993): To forekomster av nefelin-syenitt-pegmatitt i Telemark. STEIN 20 (3), 176-179 |