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Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway

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The famous Heftetjern pegmatite - June 2008

Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway
View of a part of the amazonite pegmatite

Heftetjern pegmatite, Tørdal, Drangedal, Telemark, Norway
 
Latitude & Longitude (WGS84): 59° 8' 35'' North , 8° 45' 24'' East
Latitude & Longitude (decimal): 59.14333,8.75667
Köppen climate type:Dfc : Subarctic climate
Age:960 to 850 Ma
Geologic Time:Tonian
Dating method:The age given is of the Tørdal granite which the pegmatite emanates from.
Reference for age:Bergstøl, S. & Juve, G. (1988): Scandian ixiolite, pyrochlore and bazzite in granite pegmatite in Tørdal, Telemark, Norway. Mineralogy and Petrology, 38, 229-243
Name(s) in local language(s):Heftetjern pegmatitten, Tørdal, Drangedal kommune, Telemark fylke, Norge
Other regions containing this locality:Scandinavia


A Sc-bearing granite pegmatite of amazonite-cleavelandite type. The pegmatite is about 200-250 m long and 3-4 m wide. Located about 4.3 km NW of the small parish of Tørdal.
Collecting is only allowed with permission of the landowner.

Mineral List


62 valid minerals. 4 (TL) - type locality of valid minerals. 2 (FRL) - first recorded locality of unapproved mineral/variety/etc. 3 erroneous literature entries.

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

Mesoproterozoic
1000 - 1600 Ma



ID: 1377865
Mesoproterozoic plutonic rocks

Age: Mesoproterozoic (1000 - 1600 Ma)

Comments: Deep-seated to high-level intrusions are included. Many charnockites, anorthosites, and large ophiolites, classified as plutons, are distinguished in the database using the SIGNIF item. Ophiolites were classified as plutons, even where remnants may be extrusive and/or sedimentary.

Lithology: Plutonic rocks

Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d. [18]

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

[Note: This is a complete list of references on this pegmatite]

Bergstøl, S. and Juve, G. (1988) Scandian ixiolite, pyrochlore and bazzite in granite pegmatite in Tørdal, Telemark, Norway. Mineralogy and Petrology, 38, 229-243.

Juve, G. and Bergstøl, S. (1990) Caesian bazzite in granite pegmatite in Tørdal, Telemark, Norway. Mineralogy & Petrology, 43, 131-136.

Jambor, J. (1991) Scandium microlite. American Mineralogist, 76, 668.

Werner, R. (1993) Bazzitt fra pegmatitt nær Tørdal. STEIN 20, 184-187.

Juve, G. and Bergstøl, S. (1997) Granittpegmatittene i Tørdal, Telemark. Norsk Bergverksmuseum Skrifter, 12, 56-57.

Kristiansen, R. (1998) Høydalen litium-pegmatitt, Tørdal i Telemark. STEIN, 25, 21-30.

Wise, M.A., Cerny, P., and Falster, A.U. (1998) Scandium substitution in columbite-group minerals and ixiolite. Canadian Mineralogist. 36, 673-680.

Raade, G. and Erambert, M. (1999) An intergrowth of scandiobabingtonite and cascandite from the Heftetjern granite pegmatite, Norway. Neues Jahrbuch für Mineralogie Monatshefte 1999, 545-550.

Demartin, F., Gramaccioli, C.M., and Pilati, T. (2000) Structure refinement of bazzite from pegmatitic and miarolitic occurrences. Canadian Mineralogist, 38, 1419-1424.

Ferraris, G. et al. (2000) Solving the structure of a new Ca-Sc-Sn disilicate twinned by metric merohedry. International Union of Crystallography Congress, Nancy.

Kristiansen, R. (2000) Mer om rynersonitt. STEIN 27 (1), 12-14.

Raade, G. and Kristiansen, R. (2000a) Mineralogy and geochemistry of the Heftetjern granite pegmatite, Tørdal: a progress report. Norsk Bergverksmuseum Skrifter. 17, 19-25.

Raade, G. and Kristiansen, R. (2000b) Scandium enrichment in the Heftetjern granite pegmatite, Telemark, Norway. 4th International Mineralogy in Museums Conference, Melbourne, Australia, p. 83.

Ferraris, G., Gula, A., Ivaldi, G., Nespolo, M., and Raade, G. (2001) Crystal structure of kristiansenite: a case of class IIB twinning by metric merohedry. Zeitschrift für Kristallographie. 216, 442-448.

Nespolo, M., Ferraris, G., Gula, A., Ivaldi, G., and Raade, G. (2001) Unusual merohedric twinning in kristiansenite. Progr. and Abstr., Ann. meeting, Miner. Soc. Japan, Akita, p. 154 (in Japanese with English abstract).

Raade, G., Ferraris, G., Gula, A., Ivaldi, G., and Bernhard, F. (2002) Kristiansenite, a new calcium-scandium-tin sorosilicate from granite pegmatite in Tørdal, Telemark, Norway. Mineralogy and Petrology, 75, 89-99.

Eldjarn, K. (2002) Seltene Scandium-mineralien von Tørdal, Telemark, Norwegen. Mineralien-Welt, 13 (2), 14-22 (in German).

Ellingsen, H.V. and Haugen, A. (2002) Kristiansenitt – et nytt mineral fra Tørdal. STEIN, 29 (1), 32-34.

Grew, E.S. (2002) Mineralogy, petrology and geochemistry of Beryllium: an introduction and list of Beryllium minerals. In “Beryllium: mineralogy, petrology and geochemistry” in E.S. Grew (editor). Miner. Soc. Amer. Reviews in mineralogy and geochemistry, Vol. 50, 1-76.

Hawthorne, F. (2002) The use of end-member charge-arrangements in defining new mineral species and heterovalent substitutions in complex minerals. Canadian Mineralogist, 40, 699-710.

Kristiansen, R. (2003) Scandium-mineraler i Norge. STEIN, 30, 14-23.

Raade, G. and Segalstad, T.V. (2003) International symposium on the Mineralogy and Geochemistry of Scandium. Geological museum, Natural History museum, University of Oslo, Abstracts and Proceedings no. 91.

Ferraris, G., Raade, G., Gula, A., and Ivaldi, G. (2003) Incorporation of scandium and other structural aspects in kristiansenite. International symposium on the mineralogy and geochemistry of Scandium, University of Oslo, Abstracts and Proceedings no. 2, 16-17.

Raade, G. (2003) An introduction to scandium: mineralogy and crystal chemistry. International symposium on the mineralogy and geochemistry of Scandium, University of Oslo, Abstracts and Proceedings no. 2, 31-33.

Raade, G. and Bernhard, F. (2003) Coexisting scandium minerals in the Heftetjern granite pegmatite. International symposium on the mineralogy and geochemistry of Scandium, University of Oslo, Abstracts and Proceedings no. 2, 34-35.

Raade, G. and Kristiansen, R. (2003) Scandium as a trace element in the Heftetjern pegmatite minerals. International symposium on the mineralogy and geochemistry of Scandium, University of Oslo, Abstracts and Proceedings no. 2, 36-37.

Ferraris, G., Makovicky, E., and Merlino, S. (2004) Crystallography of modular materials. Oxford University Press. 370 pp. (kristiansenite on p. 299).

Nespolo, M. (2004) Twin point groups and the polychromatic symmetry of twins. Zeitschrift für Kristallographie, 219, 57-71.

Raade, G., Bernhard, F., and Ottolini, L. (2004) Replacement textures involving four scandium silicate minerals in the Heftetjern granitic pegmatite, Norway. European Journal of Mineralogy, 16, 945-950.

Kristiansen, R. (2005) Milarittgruppens mineraler i Norge. Norsk Bergverksmuseum Skrifter, 30, 21-29.

Cooper, M.A., Hawthorne, F.C., Ball, N.A., Černý, P., and Kristiansen, R. (2006) Oftedalite, (ScCa)KBe3Si12O30, a new mineral species of the milarite group from the Heftetjern pegmatite, Tørdal, Norway: description and crystal structure. Canadian Mineralogist, 44, 943-949.

Kristiansen, R. (2008) Nye mineralfunn i Norge. STEIN 35 (1), 17-21. [analysis of rynersonite and find of bismoclite]

Laukert, G. (2008) Mineralien von Seltenerd-pegmatiten aus Norwegen und Schweden. Bachelor-Arbeit Geowissenschaften. Albert-Ludwigs Universität, Freiburg, 67 pp.

Kristiansen, R. (2009) A unique assemblage of Scandium-bearing minerals from the Heftetjern-pegmatite, Tørdal, south Norway. Norsk Bergverksmuseum Skrifter, 41, 75-104.

Lussier, A.J., Cooper, M.A., Hawthorne, F.C., and Kristiansen, R. (2009) Triclinic titanite from the Heftetjern granitic pegmatite, Tørdal, southern Norway. Mineralogical Magazine 73, 709-722.

Kolitsch, U., Kristiansen, R., Raade, G., and Tillmanns, E. (2010) Heftetjernite, a new scandium mineral from the Heftetjern pegmatite, Tørdal, Norway. European Journal of Mineralogy. 22, 309-316.

Raade, G. (2010) Plumbomicrolite from the Heftetjern granitic pegmatite, Tørdal, Telemark, south Norway. Norsk Bergverksmuseum Skrifter. 43: 21-28.

Kristiansen, R. (2010) Heftetjernitt og triklin titanitt fra Heftetjern i Tørdal. STEIN. 37 (4): 20-22.

Miyawaki, R., Momma, K., Yokoyama, K., Shigeoka, M., Matsubara, S., Ito, M., Nakai, I., and Kristiansen, R. (2012) Mn-bearing hellandite-(Y) from Telemark, Norway. Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences 2011, R-1P20.

Hawthorne, F.C., Abdu, Y.A., Ball, N.A., Černý, P., and Kristiansen, R. (2014) Agakhanovite-(Y), ideally (YCa)□2KBe3Si12O30, a new milarite-group mineral from the Heftetjern pegmatite, Tørdal, Southern Norway: Description and crystal structure. American Mineralogist. 99, 2084-2088.

Miyawaki, R., Momma, K., Yokoyama, K., Shigeoka, M., Matsubara, S., Ito, M., Nakai, I., and Kristiansen, R. (2015) Mn-bearing hellandite-(Y) from Heftetjern pegmatite, Tørdal, Norway. Canadian Mineralogist. 53: 345-356.

Kristiansen, R. (2017) Fire nye mineraler for Norge. Stein. 44 (1): 24-27. [on find of uedaite-(Ce), bohseite and plattnerite]

Chukanov, N.V., Aksenov, S.M., Rastvetaeva, R.M., Kristiansen, R., Pekov, I., Belakovskiy, D., Van, V.K., Bychkova, Y.V., and Britvin, S. (2017) Crystal structure of the OH-dominant gadolinite-(Y) analogue, (Y,Ca)2(Fe,☐)Be2Si2O8(OH,O)2 from Heftetjern pegmatite, Norway.  Acta Crystallographica: B73: 899-906.

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