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Birkeland 04 Feldspar Quarry, Birkeland, Iveland, Aust-Agder, Norway

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Latitude & Longitude (WGS84): 58° 32' 8'' North , 7° 55' 28'' East
Latitude & Longitude (decimal): 58.53576,7.92463
GeoHash:G#: u4mth24e9
Other regions containing this locality:Scandinavia
Locality type:Quarry
Köppen climate type:Dfc : Subarctic climate
Name(s) in local language(s):Birkeland 4 (Røykvartsbruddet; Gadolinittbruddet), Birkeland, Iveland kommune, Aust-Agder fylke, Norge


A granite pegmatite hosted in amphibolite located about 500 m north of the Birkeland farm. A small quarry is worked on the pegmatite, in the eastern part of it.

The quarry was started by Gustav Eftevann in 1906 (Frigstad 1968).

In 1968 it was reported that the quarry had produced about 100 kg of gadolinite and 200 ton of microcline. The quarry is also famous for a find of a large cavity containing very nice and large quartz crystals. The story goes that these crystals initially were discarded and thrown on the dumps.

Several decades later, when mineral tourism was gaining momentum, someone remembered the quartz crystals and the whole dump was emptied.

In the collections of the Evje og Hornnes geomuseum Fennefoss and the Iveland municipality mineral collection, several nice samples can be seen.

The largest specimen at Fennefoss weighs well over 50 kg (!).


Commodity List

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


Mineral List


27 valid minerals.

Rock Types Recorded

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

Select Rock List Type

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 Macrostrat.org

Proterozoic
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]

Mesoproterozoic - Paleoproterozoic
1000 - 2500 Ma



ID: 3133829
Proterozoic I gabbro

Age: Proterozoic (1000 - 2500 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{gabbro}, Minor{diorite,plutonic ultramafic group,meta-gabbro}

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 Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Frigstad, O.F. (1968) Tre nye forekomster av mineralet bismutit. in Geologisk Museum. Interne notater 1961-1990. Published by Geologisk Museums Venner, Oslo 1991, p. 18.
Frigstad, O.F. (1968) En undersøkelse av cleavelandittsonerte pegmatittganger i Iveland-Evje, Nedre Setesdal. Hovedfagsoppgave (Thesis), University of Oslo.
Neumann (1985) Norges mineraler. Norges geologiske undersøkelse Skrifter 68, p. 101 + 117 [on bismutite, rhabdophane-(Ce)].
Frigstad, O.F. (1999) Amazonittpegmatitter i Iveland-Evje. Norsk Bergverksmuseum Skrift 15: 60-73.
Pedersen, R. (ed.) (2007) Iveland V: Gruvedrift. Iveland Bygdesogenemd.

External Links

Coordinates © Kartverket - https://www.kartverket.no

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