Ljoslandsknipan (Thortveitittgruva), Knipan (Knipane), Ljosland, Iveland, Aust-Agder, Norway

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Ljoslandsknipan (Thortveitittgruva; Ljosland 4 ; Knipan 1)

A thortveitite-bearing granite pegmatite dike located on the south-western slope of the hill Knipan quarried for feldspar. The locality is famous for being the type locality of the mineral thortveitite (see also http://www.mindat.org/mesg-7-129885.html).
Bjørlykke locality no. 66.

References

- Schetelig, J. (1911) Über Thortveitit, ein neues Mineral. Vorläufige Mitteilung. Centralblatt für Mineralogie, Geologie und Paläontologie, 1911, 721-726
- Schetelig, J. (1922): Thortveitit- Ein Scandiumsilikat, (Sc,Y)2Si2O7. in Brøgger, W.C, Vogt, Th. & Schetelig, J. (1922): Die Mineralien der südnorwegischen Granitpegmatitgänge. II. Silikate der seltenen Erde. Videnskapsselskapets Skrifter. I.Mat-Naturv. Klasse 1922. 11, 51-87
- Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-311
- Hansen, S. (1973): Ett mineralrikt fältspatbrott i Iveland, Norge. Unpublished paper, 20p

Mineral List

Albite var: Oligoclase 'Albite-Anorthite Series' 'Allanite' Beryl Biotite Calcite Chalcopyrite 'Chlorite Group'

Columbite Epidote Euxenite-(Y) 'Fergusonite' ? Ilmenite Magnetite Malachite Microcline

'Monazite' Muscovite Palygorskite ? Pyrite Pyrrhotite Quartz var: Amethyst var: Rock Crystal

Rutile var: Ilmenorutile Spessartine Thortveitite (TL) Xenotime-(Y) Zircon var: Alvite

29 entries listed. 17 valid minerals. 1 type locality (valid mineral).