Høgetveit Feldspar Quarry, Evje og Hornnes, Aust-Agder, Norway
|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 ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
14 valid minerals. 2 erroneous literature entries.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
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 Macrostrat.org
541 - 2500 Ma
|Proterozoic crystalline metamorphic rocks|
Age: Proterozoic (541 - 2500 Ma)
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. 
1000 - 1600 Ma
|Proterozoic II granite|