Mindat Logo

Fen Complex, Nome, Telemark, Norway

(Fens-feltet)

Famous for it's rare volcanic/meta-volcanic rocks:

Carbonatites; søvite (coarse-grained calcite carbonatite), rødberg (altered carbonatite with hematite stained granular calcite, dolomite and sometimes ankerite), rauhaugite (dolomite carbonatite), ringite (coars-grained carbonatite containing aegirine and alkali-feldspar).
Lamprophyres; damkjernite (melanocratic nepheline lamprophyre).
Ijolites; melteigite (melanocratic nepheline ijolite), hollaite (calcite-melteigite, consisting of pyroxene (55%), calcite and nepheline).
Other rocks; fenite (metasomatic rock composed of alkali feldspare, sodic pyroxene and/or alkali amphibole, sometimes monomineralic alkali feldspar rock), vibetoite (pyroxenite containing aboundant Ti-augite and hornblende with biotite, primary calcite, and occasional albite and nepheline).

Many of the rocks were first described by W. C. Brøgger in 1921.
Most of the complex are now protected because of it's value to science, and collecting is prohibited!



References:
- Brøgger, W.C. (1921) Die Eruptivgesteine des Kristianiagebietes. IV. Das Fengebiet in Telemark, Norwegen. Norske Skrifter udgit av Videnskabsselskabet i Kristiania. I. Math. Nat. Klasse. No.9, p. 1-408.

- Andersen, T. (1984) Secondary processes in carbonatites: petrology of "rødberg" (hematite-calcite-dolomite carbonatite) in the Fen central complex, Telemark (south Norway). Lithos: 17: 227-245.

- Andersen, T. (1986) Compositional variation of some rare earth minerals from the Fen complex (Telemark, SE Norway): implications for the mobility of rare earths in a carbonatite system. Mineralogical Magazine: 50: 503-509.

- Andersen, T. (1988) Evolution of peralkaline calcite carbonatite magmas. Experimentally determined trace and minor element partitioning in the Fen complex, southeast Norway. Lithos: 22: 99-112.




Mineral list contains entries from the region specified including sub-localities


Mineral List:
Anatase
Andradite
'Apatite'
Aragonite
Baryte
Brucite
Calcite
Chalcopyrite
Columbite
Corundum
Diaoyudaoite
Dolomite
Fersmite
Fergusonite-(Y) ?
Goethite
Hematite
Hercynite
var: Picotite

Hibonite
Ilmenite
Isokite
Kobeite-(Y)
Loparite-(Ce)
Magnetite
Monazite-(Ce)
Parisite-(Ce)
Periclase ?
Perovskite
Perrierite-(Ce)
'Psilomelane'
Pyrite
Pyrochlore
Pyrolusite
Pyrrhotite
Rutile
Spinel
Synchysite-(Ce)
Thorianite
Thorite
Thortveitite
Titanite
Topaz
Uranpyrochlore ?
Villiaumite
Zircon


64 entries listed. 40 valid minerals.

Localities in this Region:
Norway
 
  • Telemark
    • Nome
      • Fen complex
        • Hydro Vein

The above list 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 page is currently not sponsored. Click here to find out how you can sponsor this page.


Mineral and/or Locality
Google
 
www.mindat.org Web
Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 22nd Nov 2009 08:14:51