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Norway | |
| Geological Survey of Norway (NGU). The Industrial Mineral Database. Deposit Area 815 - 331. Risøy |
| Norwegian Geological Survey. The Ore database. Deposit Area 815 - 040, Lindvikskollen. |
| De La Cruz, E. Müller, A. & Erambert, M. (2021) The Lindvikskollen pegmatite at Kragerø: New mapping and mineral chemistry results. Norsk Mineralsymposium 2021, 61-70 |
| De La Cruz, E. Müller, A. & Erambert, M. (2021) The Lindvikskollen pegmatite at Kragerø: New mapping and mineral chemistry results. Norsk Mineralsymposium 2021, 61-70 |
| de La Cruz Rodrigues, Erika Helena (2021) Tourmaline of the Kragerø pegmatites: The source of boron and its implication for the melt formation of Sveconorwegian pegmatites. Master thesis, Department of Geosciences and Natural History Museum, University of Oslo. |
| Ramberg, H. (1942) Rapport fra Sundebru glimmerbrudd, Gjerstad [Report from Sundebru mica quarry, Gjerstad]. Norges Geologiske Undersøkelse. Bergarkivets Rapport BA 5085. Norges Geologiske Undersøkelse (NGU) |
| Knut Edvard Larsen collection # MM- 5302 |
| [var. Adularia] Olav Revheim collection |
Valberg Quarry, Valberg, Kragerø, Telemark, Norway