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Høgetveit (Høgtveit), Evje og Hornnes, Aust-Agder, Norway
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A feldspar quarry in granite pegmatite located 5km SE of Evje center and 1 km N of Lauvland.
Bjørlykke locality nr 107.

Note on the mineral list:
The mineral Schetelig (1931) called thalenite was later shown to be a beta-phase of Y2Si2O7 with a thortveitite structure (Neumann 1985). It is identical with the mineral described as keiviite-(Y) from Kola, Russia by Voloshin et al. (1983).

Mineral List

'Albite-Anorthite Series'
'Almandine-Spessartine Series'
Tengerite-(Y) ?
Tombarthite-(Y) (TL)
var: Alvite

23 entries listed. 14 valid minerals. 1 type locality (valid mineral). 1 erroneous literature entry.

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- Schei, P. (1905): Notes on Norwegian minerals, 1-6. Nyt Magazin for Naturvidenskaberne. 43, 137-145. [on the morphology of fergusonite from Høgetveit]

- Barth, T. (1927): The structure of syntetic, metamict, and recrystallized fergusonite. Norsk Geologisk Tidsskrift 9: 23-36 [fergusonite from Høgetveit was used in this study]

-Schetelig, J. (1931): Remarks on thalenite from some new occurrences in Southern Norway. Norsk Geologisk Tidsskrift. 12, 507-519

- Bjørlykke, H. (1934): The Mineral Paragenesis and Classification of the Granite Pegmatites of Iveland, Setesdal, Southern Norway. Norsk Geologisk Tidsskrift 14, 211-31

- Neumann, H. 1961: The scandium content of some Norwegian minerals and the formation of thortveitite, a reconnaissance survey. Norsk Geologisk Tidsskrift. 41, 197-210 [with analysis of the Sc content of xenotime-(Y) from Høgetveit]

- Wilke, H.-J. (1976): Mineral-Fundstellen Band 4: Skandinavien. Chr. Weise Verlag, München, p 46

- Neumann, H. & Nilssen, B. (1968): Tombarthite, a new mineral from Høgetveit, Evje, South Norway. Lithos, 1: 113-123.

- Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p. 157[on beta-Y2Si2O7= keiviite-(Y)]

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