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Froland, Aust-Agder, Norway

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Neighbouring regions:
Name(s) in local language(s):Froland kommune, Aust-Agder fylke, Norge


Area with a large pegmatite field.

The pegmatites are fairly primitive and have originated at ca. 500°C (Müller et al., 2009).

A study of the black and light micas from the Froland pegmatite district, has shown that the studied dark micas can be classified as siderophyllite and magnesian siderophyllite and the light micas as ferroan muscovite with less than 1 apfu F. (Rosing-Schow et al. 2017).


Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

Actinolite

Aeschynite-(Y)

Albite

var: Oligoclase

var: Oligoclase-Albite

'Albite-Anorthite Series'

'Alkali Feldspar'

Allanite-(Ce)

'Allanite Group'

Almandine

'Almandine-Spessartine Series'

'Amphibole Supergroup'

Andalusite

Anthophyllite

'Apatite'

Arsenopyrite

Augite

'Bastnäsite'

Beryl

'Biotite'

Calcite

Chalcopyrite

Chlorapatite

'Chlorite Group'

'Clinopyroxene Subgroup'

Cordierite

Corundum

var: Ruby

Devilline

Diaspore

Diopside

Dumortierite

Euxenite-(Y)

'Feldspar Group'

'Fergusonite'

Fergusonite-(Y)

Fluorapatite

Fluorite

Fourmarierite

'Gadolinite'

Galena

'Garnet Group'

Gedrite

Glaucocerinite

Goethite

Grandidierite

Graphite

Hematite

'Högbomite'

'Hornblende'

Ilmenite

Kasolite

'K Feldspar'

Kornerupine

Kyanite

Langite

Magnesiodumortierite

Magnetite

Microcline

'Monazite'

Muscovite

var: Ferroan muscovite

var: Fuchsite

var: Sericite

'Muscovite-1M'

Preiswerkite

Pyrite

Pyrrhotite

Quartz

var: Smoky Quartz

Rozenite

Rutile

Samarskite-(Y)

'Scapolite'

Siderophyllite

var: Magnesian Siderophyllite

Sillimanite

Silver

Sphalerite

Spinel

Tennantite

Thorite

Titanite

var: Yttrian Titanite

'Tourmaline'

Uraninite

Uranophane

Uranophane-β

Vesuvianite

Volkonskoite

Woodwardite

Wroewolfeite

'Xenotime'

Xenotime-(Y)

Yttrotantalite-(Y)

Zircon


65 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!

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

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
1000 - 1600 Ma



ID: 3158480
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 Macrostrat.org, used under Creative Commons Attribution 4.0 License


Localities in this Region
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Norway

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)
Axel Müller, Peter M. Ihlen, Rune B. Larsen, John Spratt, Reimar Seltmann (2009): Quartz and garnet chemistry of south Norwegian pegmatites and its implications for pegmatite genesis. Estudos Geológicos 19, 20-24. [http://www.ufpe.br/estudosgeologicos/paginas/edicoes/2009192/2009192t03.pdf]
Rosing-Schow, N., Müller, A. & Friis, H. (2017): Composition and classification of mica from south Norwegian pegmatites. PEG2017. NGF Abstracts and Proceedings, 2017 (2): 78-79.

Mineral and/or Locality  
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