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Norway | |
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| 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
Richard Dale photo & specimen, id nr 372585 |
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| Raade, Gunnar (1971) Metamict minerals from Tvedalen. Mineralogisk-Geologisk Museum - Universitetet i Oslo- Interne notater, Geologisk Museums venner. 35 |
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| Andresen, Peter (2013) Gedigent bly og andre spennende mineraler fra en unik pegmatitt i Tvedalen [Native lead and other exciting minerals from an unique pegmatite in Tvedalen ]. Norsk Bergverksmuseum Skrift, 50. 83-87 |
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Sweden | |
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| Silin, Ivan, Gürsel, Devrim, Büchter, Christian, Weitkämper, Lars, Wotruba, Hermann (2021) Recovery of Catapleiite and Eudialyte from Non-Magnetic Fraction of Eudialyte ore Processing of Norra Kärr Deposit. Minerals, 12 (1) 19 doi:10.3390/min12010019 |
Reiersdal Feldspar Quarries, Øvrebø, Vennesla, Agder, Norway