References
- Garmo, T. (1978): Mineralnotater. NAGS-nytt 5(1),6
- Larsen, A. O. & Åsheim, A.(1976): Mineraler fra Langangen. NAGS-nytt 3 (1), 9-12.
- Larsen, A. O. (1988): Helvite group minerals from syenite pegmatites in the Oslo Region, Norway. Contribution to the mineralogy of Norway no 68. Norsk Geologisk Tidsskrift 68: 119-124 [with anlysis of helvite from Kokkersvold and at Blåfjell]
Mineral List
43 entries listed. 38 valid minerals.
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