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Heftetjern Pegmatite

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Journal Article
Published: 15 September 2015
The Canadian Mineralogist (2015) 53 (2): 345–356.
...Ritsuro Miyawaki; Koichi Momma; Kazumi Yokoyama; Masako Shigeoka; Satoshi Matsubara; Miku Ito; Izumi Nakai; Roy Kristiansen Abstract Mn-bearing hellandite-(Y) occurs as pinkish yellow granular crystals (up to sub mm) in the Sc-rich granite pegmatite at Heftetjern, Tørdal, Telemark, Norway...
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Journal Article
Published: 01 October 2014
American Mineralogist (2014) 99 (10): 2084–2088.
...Frank C. Hawthorne; Yassir A. Abdu; Neil A. Ball; Petr Černý; Roy Kristiansen Abstract Agakhanovite-(Y), ideally (YCa)□ 2 KBe 3 Si 12 O 30 , is a new milarite-group mineral from the Heftetjern pegmatite, Tørdal, southern Norway. Crystals are prismatic along [001], and show the forms {100} and {100...
FIGURES
Journal Article
Published: 01 March 2010
European Journal of Mineralogy (2010) 22 (2): 309–316.
...Uwe Kolitsch; Roy Kristiansen; Gunnar Raade; Ekkehart Tillmanns Abstract Heftetjernite, ideally ScTaO 4 , is a new scandium mineral from the Heftetjern pegmatite, Tørdal, Telemark, Norway. In the type specimen, it occurs as minute, elongate tabular, very dark brown crystals in a single small void...
FIGURES
Journal Article
Published: 01 August 2006
The Canadian Mineralogist (2006) 44 (4): 943–949.
...Mark A. Cooper; Frank C. Hawthorne; Neil A. Ball; Petr Černý; Roy Kristiansen Abstract Oftedalite, ideally (Sc,Ca,Mn 2+ ) 2 K (Be,Al) 3 Si 12 O 30 , is a new mineral species from the Heftetjern granitic pegmatite, northwest of the small parish of Tørdal, southern Norway. It occurs as short...
FIGURES
Journal Article
Published: 01 August 2017
European Journal of Mineralogy (2017) 29 (4): 755–766.
...-type pegmatites of the Třebíč Pluton. Milarite-group minerals from Velká Skála exhibit very similar compositional evolution to those found in the Heftetjern pegmatite, Tørdal, Norway. * Corresponding author, e-mail: rskoda@sci.muni.cz The internal textures and chemical compositions...
Journal Article
Published: 01 October 2009
Mineralogical Magazine (2009) 73 (5): 709–722.
...A. J. Lussier; M. A. Cooper; F. C. Hawthorne; R. Kristiansen Abstract Two crystals from a sample of titanite from the Heftetjern granitic pegmatite, Tørdal, southern Norway, were extracted for structure analysis and shown to have triclinic symmetry. Unit-cell parameters are as follows: a = 7.0696(4...
FIGURES
Journal Article
Published: 01 November 2004
European Journal of Mineralogy (2004) 16 (6): 945–950.
...–250 m long and 3–4 in wide, is situated at Heftetjern, a small lake in the parish of Tørdal, Drangedal community, Telemark county, south Norway. The occurrence of scandium minerals in this pegmatite was first reported by Bergstøl & Juve (1988) and Juve & Bergstøl (1990) , who described...
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Journal Article
Published: 01 May 2020
The Canadian Mineralogist (2020) 58 (3): 367–379.
...Gunnar Raade ABSTRACT Helvine-group minerals from two granitic pegmatites have disparate compositions, from nearly pure helvine (Ågskardet, northern Norway; Devonian) to helvine close to ternary compositions (Heftetjern, southern Norway; Precambrian). Metagranite from Høgtuva (northern Norway...
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SEM image of crystals of ‘Ca-hingganite-(Y)&#x27; from the <b>Heftetjern</b> granitic p...
Published: 16 May 2019
Fig. 1. SEM image of crystals of ‘Ca-hingganite-(Y)' from the Heftetjern granitic pegmatite.
Image
Regional geological sketch-maps of <b>Heftetjern</b>, Tørdal, Telemark, Norway, re...
Published: 15 September 2015
F ig . 2. Regional geological sketch-maps of Heftetjern, Tørdal, Telemark, Norway, reproduced after Segalstad & Raade (2003) . Stippled lines separate zones with pegmatites dominated by green amazonite, white K-feldspar, and pink K-feldspar.
Journal Article
Published: 23 October 2018
The Canadian Mineralogist (2018) 56 (4): 463–488.
...-Iveland ( Oftedal 1940 ). In the Tørdal pegmatite field black and light grey mica is equally common. The Skardsfjell pegmatite, the Heftetjern pegmatite, and the Upper and Lower Høydalen pegmatites are known to contain Li-rich light brown to black and purple mica – respectively, “zinnwaldite...
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Journal Article
Published: 25 March 2021
The Canadian Mineralogist (2021) 59 (2): 445–452.
... scandium mineral from the Heftetjern pegmatite, Tørdal, Norway . European Journal of Mineralogy 22 , 309 – 316 . Konovalenko, S.I., Ananyev, S.A., Chukanov, N.V...
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Journal Article
Published: 01 October 2015
Mineralogical Magazine (2015) 79 (5): 1195–1202.
... . Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva , 119 , 43 – 46 [in Russian] . Cooper M.A. Hawthorne F.C. Ball N.A. Cerný P. ( 2006 ) Oftedalite, (Sc,Ca,Mn 2+ ) 2 K(Be,Al) 3 Si 12 O 30 , a new member of the milarite group from the Heftetjern pegmatite, Tordal, Norway...
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Journal Article
Published: 01 June 2010
The Canadian Mineralogist (2010) 48 (3): 615–628.
... , 140 – 153 (in Russian). Cooper , M.A. , Hawthorne , F.C. , Ball , N.A. , Černy , P. & Kristiansen , R. ( 2006 ): Oftedahlite, (Sc, Ca, Mn 2+ ) 2 K(Be, Al) 3 Si 12 O 30 , a new member of the milarite group from the Heftetjern pegmatite, Tørdal, Norway: description...
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Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 591–610.
.... , 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 . Ma , C. and Rossman , G.R. ( 2008 ) Barioperovskite, BaTiO 3 , a new mineral from...
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Journal Article
Published: 01 December 2012
The Canadian Mineralogist (2012) 50 (6): 1839–1875.
...Petr Černý; David K. Teertstra; Ron Chapman; Julie B. Selway; Frank C. Hawthorne; Karen Ferreira; Leonard E. Chackowsky; Xian-Jue Wang; Robert E. Meintzer Abstract Three types of subvertical pegmatitic leucogranites and pegmatites populate the Red Cross Lake pegmatite field, located in a greenstone...
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Journal Article
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 999–1021.
... Bulnaev (2006) Barylite 1825 Långban deposit, Filipstad, Värmland, Sweden Holtstam and Langhof (2007) Jonsson (2004) Bavenite 2550 Londonderry pegmatite, Coolgardie, Western Australia, Australia Jacobson et al. (2007) Jacobson et al. (2007) Bazzite 967 Heftetjern pegmatite...
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Journal Article
Published: 01 June 2012
Mineralogical Magazine (2012) 76 (3): 761–767.
... involving four scandium silicate minerals in the Heftetjern granitic pegmatite, Norway . European Journal of Mineralogy , 16 , 945 – 950 . Schaltegger U. Brack P. ( 2007 ) Crustal-scale magmatic systems during intracontinental strike-slip tectonics: U, Pb and Hf isotopic constraints...
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Journal Article
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 799–801.
... in late-stage albite zones near the core of the Upper Høydalen pegmatite which is one of the chemically most evolved pegmatites of the Tørdal field. Scandium concentrations of the investigated garnets range from 14 to 2197 ppm. The highest Sc concentrations are found in garnets from the Heftetjern 1...
Journal Article
Published: 01 October 2018
Mineralogical Magazine (2018) 82 (5): 1049–1055.
... of Extreme Ta Fractionation . PhD Thesis, University of Manitoba, Winnipeg , USA . Raade , G. ( 2010 ) Plumbomicrolite from the Heftetjern granitic pegmatite, Tørdal, Telemark,south Norway . Norsk Bergverksmuseum, Skrifter , 43 , 21 – 28 . Safiannikoff , A. and van Wambeke , L...
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