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larvikite

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Series: Geological Society, London, Special Publications
Published: 01 January 2015
DOI: 10.1144/SP407.14
EISBN: 9781862396951
... In the northwestern part of the area, close to the town of Tønsberg, red larvikite is found (Fig. 6 ). This variety was named Tønsbergite by Brøgger (1898) . However, field observations suggest that this variety is actually hydrothermally altered larvikite (oxidized), displaying a gradual...
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Journal Article
Published: 01 June 2017
Mineralogical Magazine (2017) 81 (3): 543-554.
...H. Friis; M. T. Weller; A. R. Kampf Abstract The new mineral hansesmarkite (IMA2015-067), Ca 2 Mn 2 Nb 6 O 19 ·20H 2 O, was discovered at the AS Granit larvikite quarry in Tvedalen, Larvik, Vestfold, Norway. Hansesmarkite forms faintly yellow crystals up to 0.3 mm or thin coatings in patches...
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Journal Article
Published: 23 October 2018
The Canadian Mineralogist (2018) 56 (4): 529-542.
... are mainly confined to larvikite ( i.e ., hypersolvus monzonite) and nepheline syenite of the complex, but the genetic relationship between the pegmatites and their host rock is unclear. Pegmatites carrying primary wöhlerite were sampled from different sections of the complex to investigate whether...
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Journal Article
Published: 01 June 1975
Journal of the Geological Society (1975) 131 (3): 329-335.
... Larvikites of the Oslo Province, Norway I.G. Meighan. The larvikitic syenites of the Permian Oslo Province are cumulates exhibiting steep igneous lamination (45°–90°) with occasional parallel, small-scale rhythmic layering. In the large, southernmost larvikite complex, these structures dip inwards, and were...
Journal Article
Published: 01 April 2010
The Canadian Mineralogist (2010) 48 (2): 255-266.
...Joel D. Grice; Joel D. Grice; Gunnar Raade; Mark A. Cooper Abstract Alflarsenite, ideally NaCa 2 Be 3 Si 4 O 13 (OH)·2H 2 O, is a new zeolite species from the Tuften larvikite quarry, Tvedalen, Larvik, Vestfold, south Norway. The crystal structure has been solved in space group P 2 1 , with unit...
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Journal Article
Published: 01 December 1985
American Mineralogist (1985) 70 (11-12): 1087-1100.
...A. P. Jones; L. M. Larsen Abstract Whole-rock analyses including the REE are given for nineteen samples from four of the six overlapping nepheline syenite intrusions which constitute the Proterozoic (∼ 1310 ma) Motzfeldt Centre. Larvikite margins of one unit (SM5) are apparently related...
Journal Article
Published: 01 August 2014
European Journal of Mineralogy (2014) 26 (4): 567-576.
...Henrik Friis; Alf Olav Larsen; Anthony R. Kampf; R. James Evans; Rune S.Selbekk; Aranda Sánchez; Jan Kihle Abstract Peterandresenite (IMA2012-084), ideally Mn 4 Nb 6 O 19 ·14H 2 O, is the first naturally occurring hexaniobate. It was found at the AS Granit larvikite quarry in Tvedalen, Larvik...
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Journal Article
Published: 01 April 2013
The Canadian Mineralogist (2013) 51 (2): 285-296.
... pegmatite localities in Norway: Blåfjell, Langangen, Telemark, and the AS Granit larvikite quarry, Tvedalen, Vestfold. The mineral is monoclinic, P 2 1 / c , with a 8.759(5), b 4.864(2), c 31.258(6) Å, β 90.31(6)°, V 1331.7(6) Å 3 , and Z = 4. The crystal structure was refined to R 1 = 0.048 for 3651...
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Journal Article
Published: 01 August 2009
European Journal of Mineralogy (2009) 21 (4): 893-900.
...Gunnar Raade; Joel D. Grice; Mark A. Cooper Abstract Alflarsenite is a new beryllium-silicate zeolite with chemical composition close to NaCa 2 Be 3 Si 4 O 13 (OH)·2H 2 O. It is a late-stage hydrothermal mineral from a syenitic pegmatite in the Tuften larvikite quarry, Tvedalen, Larvik, Vestfold...
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Journal Article
Published: 01 April 1986
American Mineralogist (1986) 71 (3-4): 343-355.
... distributions and faceted interfaces. The melt-grown composites have textures strikingly similar to feldspar intergrowths found in cumulus feldspars of the Larvikite monzonite suite in the Oslo igneous province, and this similarity suggests that eutectic growth from near-cotectic melts may account for certain...
Journal Article
Published: 01 February 1978
American Mineralogist (1978) 63 (1-2): 188-195.
... 3 ; 14 weight percent Y 2 O 3 ). X-ray studies show that the unit cell is slightly larger than for gadolinites-(Y). The chondrite-normalized REE pattern of the gadolinite-(Ce) shows strong enrichment of the larger REE relative to the smaller REE. This is believed to be related to the larvikite...
Image
Speciation of Larvik complex alkaline pegmatite amphiboles as depicted on t...
Published: 01 October 2013
Fig. 12 Speciation of Larvik complex alkaline pegmatite amphiboles as depicted on the Si + Na + K versus [4] Al + Ca plot. Amphibole compositions from Neumann (1976) are shown as circles: Group 1 – nepheline-normative larvikite and plagiofoyaite; Group 2 – quartz-normative larvikite; Group 3
Image
Backscatter electron (BSE) image of large trellis ilmenite oxy-exsolution l...
Published: 01 March 2016
Figure 1 Backscatter electron (BSE) image of large trellis ilmenite oxy-exsolution lamellae on the (111) octahedral planes of magnetite in larvikite, south Norway. Poorly resolved later generations of exsolution are probably also ilmenite. Bright white grain is pyrite.
Image
Chondrite normalized spider plot of wöhlerite from LPC pegmatites (1 and 2)...
Published: 23 October 2018
Fig. 7. Chondrite normalized spider plot of wöhlerite from LPC pegmatites (1 and 2) and bulk-rock larvikite (3) and nepheline syenite (4). Normalization values from McDonough & Sun (1995) and bulk-rock data from Neumann (1980) . Wöhlerite samples in shadowed area 2 include AROY1 (RS VI
Image
Ternary plot showing clinopyroxene compositions in the system diopside-hede...
Published: 01 October 2013
Fig. 9 Ternary plot showing clinopyroxene compositions in the system diopside-hedenbergite-aegirine. Primary Larvik plutonic complex clinopyroxenes are shown as blue diamonds, secondary compositions as red squares. Clinopyroxenes from host larvikite/lardalite are shown as grey circles (data from
Journal Article
Published: 01 April 2001
Mineralogical Magazine (2001) 65 (2): 322.
... of ignimbrite, lamprophyre, larvikite and trachyte are excellent. This should prove to be a suitable popular guide for beginners of all ages. There is a good index. ...
Image
Outcrop macrophotography of: (a) Zeolite pocket containing analcime and nat...
Published: 23 October 2018
Fig. 2. Outcrop macrophotography of: (a) Zeolite pocket containing analcime and natrolite with altered microcline (red crystals), Tuften quarry (RS VI). (b) Wöhlerite (wöh; yellow elongated mineral) assemblage near pegmatite contact to host larvikite; Mc = microcline, Mt = magnetite, Zeo
Image
Cathodoluminescence micrographs of apatite samples investigated. ( a ) Blue...
Published: 01 February 2002
larvikite of Svensken (Norway); the CL emission is mainly activated by REE 3+ ( cf. Fig. 5 ); ( c ) apatite crystal from the alkali complex of Mushugai (Mongolia) showing REE -activated violet CL ( cf. CL emission spectrum in Fig. 4 ); ( d ) apatite grain from Ermakovka (Transbaikalia); the different
Image
Cathodoluminescence micrographs of apatite samples investigated. ( a ) Blue...
Published: 01 February 2002
larvikite of Svensken (Norway); the CL emission is mainly activated by REE 3+ ( cf. Fig. 5 ); ( c ) apatite crystal from the alkali complex of Mushugai (Mongolia) showing REE -activated violet CL ( cf. CL emission spectrum in Fig. 4 ); ( d ) apatite grain from Ermakovka (Transbaikalia); the different
Image
Cathodoluminescence micrographs of apatite samples investigated. ( a ) Blue...
Published: 01 February 2002
larvikite of Svensken (Norway); the CL emission is mainly activated by REE 3+ ( cf. Fig. 5 ); ( c ) apatite crystal from the alkali complex of Mushugai (Mongolia) showing REE -activated violet CL ( cf. CL emission spectrum in Fig. 4 ); ( d ) apatite grain from Ermakovka (Transbaikalia); the different