Feldspar Group from selected localities.
Norway | |
| Geological Survey of Norway. Industrial Mineral database. Deposit Area 1850 - 333. Øvre Eivollen |
Geological Survey of Norway. Industrial Mineral database. Deposit Area 1850 - 310. Fjellgruvene. | |
Geological Survey of Norway. Industrial Mineral database. Deposit Area 1850 - 335. Hammondgruva. | |
| Neumann, H., Heier, K. & Hartley, J. (1955): On loellingite (FeAs2). Norsk Geologisk Tidsskrift 34:157-165 |
Geological Survey of Norway. The Industrial Mineral Database. Deposit Area 1850 - 317. | |
| Øvereng, O. (1973) Kvarts - feltspatundersøkelseri Hamarøy kommune, Nordland fylke.- Bergvesenet Rapport BV 1550 |