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Norway | |
| Vang, I. (2008): Skarn minerals and geological structures at Kalkheia, Kristiansand, southern Norway. Examensarbeten i geologi vid Lunds universitet, no. 232, 16 pp |
| Sverdrup, T. L. (1959) The pegmatite dyke at Rømteland. A description of the minerals and a discussion of the mineral paragenesis, especially within the system (Fe,Mn)O-TiO2-Y2O3-(Nb,Ta)2O3-SiO2. Norges Geologiske Undersøkelse 211. Norges Geologiske Undersøkelse (NGU) p.124-196. |
| [var. Yttrium-bearing Titanite] Griffin, William L., Nilssen, Borghild, Nilssen, Borghild (1979) Britholite (-Y) and its alteration: Reiarsdal, Vest-Agder, south Norway. Contributions to the mineralogy of Norway, No. 64. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 59 (3) 265-271 |