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Høgetveit Feldspar Quarry, Evje og Hornnes, Aust-Agder, Norway

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Latitude & Longitude (WGS84): 58° 33' 52'' North , 7° 50' 49'' East
Latitude & Longitude (decimal): 58.56448,7.84697
Other regions containing this locality:Scandinavia
Köppen climate type:Dfc : Subarctic climate
Name(s) in local language(s):Høgetveit (Høgtveit), Evje og Hornnes kommune, Aust-Agder fylke, Norge

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).
A re-examination of original material of tombarthite-(Y), which was described from Høgetveit, shows that all samples are heterogeneous, and hence not constituted by a single mineral. It was thus descredited by IMA in 2016 (Proposal 16-K).

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

14 valid minerals. 2 erroneous literature entries.

Rock Types Recorded

Note: this is a very new system on and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

541 - 2500 Ma

ID: 3186372
Proterozoic crystalline metamorphic rocks

Age: Proterozoic (541 - 2500 Ma)

Lithology: Granitoid gneiss; orthogneiss/paragneiss

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

1000 - 1600 Ma

ID: 3157897
Proterozoic II granite

Age: Mesoproterozoic (1000 - 1600 Ma)

Lithology: Major:{granite}, Minor{monzonite,meta-granite,meta-monzonite}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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)]
Friis, H. (2016): Hva er tombarthite-(Y)? Norsk Mineralsymposium 2016: 13-19.

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