... Khibiny and Lovozero, Russia and two “gonnardite” samples from Tvedalen, Norway and Gignat, France. Observations are given to indicate that the Norwegian sample deduced to be tetranatrolite rather than gonnardite. Although the crystal structures of tetranatrolite and gonnardite are very similar...

..., Oslo rift valley, Norway, was undertaken to shed light on the pegmatite petrogenesis. Detailed rare earth element ( REE ) analyses indicate important differences between the zircon from each type of pegmatite. Primary zircon from miaskitic Stavern-, Tvedalen- and Stålaker-type pegmatites has a mean Σ...

... d’anneaux à cinq et à huit membres. Les liaisons entre ces plaques sont particulières à chaque structure. (Traduit par la Rédaction) 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...

.... , and in Tuften quarry, Tvedalen, South Norway, coexisting with hambergite, analcime, chiavennite, etc. The mineral forms spherulites up to 2 mm, as well as fibrous crusts. Sphaerobertrandite from Sengischorr Mountain occurs as thin tabular, prismatic crystals up to 0.5 × 0.2 × 0.05 mm in aggregates overgrowing...

... on level 4 in the AS Granit larvikite quarry in Tvedalen, Larvik, Vestfold, Norway (WGS 84 GPS coordinates: N 59° 2.353′, E 9° 51.413′). The dike was up to 20 cm in thickness and dipped 30° towards south. The dike was later blasted and removed during on-going quarrying activity. Peterandresenite was found...

...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...

... 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...

..., Ottawa (catalogue number CMNMC 86066). The mineral was found by the first author in 1969 in a syenitic pegmatite in the Tuften (= Svensken) larvikite quarry, Tvedalen, Larvik, Vestfold, south Norway. It was recognized as a new species right from the beginning, based on an unknown X-ray powder...

...Alf Olav Larsen; Arne Asheim; Gunnar Raade; Johan Tafto Abstract Tvedalite occurs as cream white to pale beige spherulites up to 3 mm in diameter in vugs in a nepheline syenite pegmatite of the Vevja quarry in Tvedalen, Brunlanes, Vestfold County, Norway. The tvedalite spherulites are always...

...- syenite pegmatites Rode Ranch, Llano Co., Texas, USA ;Honeycomb Hills, Utah, USA; Hsianghualing, Nanling Ranges, Hunan, China; Mont Saint-Hilaire, Quebec, Canada; Tvedalen and Lågendalen, Oslo region, Norway. Ehlmann & Mitchell (1970) ; Montoya et al. (1964) ; Crook (1977) ; Huang et al. (1988...

... in the mineralogy of alkaline rocks. The book documents multiple mineral occurrences and minerals of the Larvik Plutonic Complex, covering an area of over 1000 km 2 set in the Permian Oslorift of southern Norway. It is one of the best known alkaline complexes in the world, in the same leagueas Khibiny and Lovozero...

... quarry, southern Norway. The sample exhibits 232 Th and 238 U activities of 137 and 2.6 Bq g –1 , respectively, and a calculated total absorbed α-dose of 8 × 10 15 α-decay mg –1 . Its chemical composition falls generally between chevkinite-(Ce)–perrierite-(Ce) and allanite-(Ce)–ferriallanite-(Ce) mineral...

... alkaline complex, South Greenland, and (C) and (D) are from Tvedalen, Norway. Note that in all images the Nb minerals are the lighter grey in color. ...

... Newsletter No. 28, December 2015, page 1860; Mineralogical Magazine , 79 , 1859–1864. IMA No. 2015-067 Ca 2 Mn 2 Nb 6 O 19 ·20H 2 O AS Granit larvikite quarry (4th level), Tvedalen, Larvik, Vestfold, Norway (59°2.353’N, 9°51.413’ E) Henrik Friis, Mark T. Weller and Anthony R. Kampf *E...

...Paula C. Piilonen; Andrew M. McDonald; Glenn Poirier; Ralph Rowe; Alf Olav Larsen Abstract The major and trace element geochemistry of mafic silicate minerals from alkaline pegmatites within the 10 ring sections of the Larvik plutonic complex, Oslo rift, southern Norway, have been studied to shed...

..., Igaliko alkaline complex in southwestern Greenland, in the Langes-undfjord area, Norway (at Brønnebukta, Siktesøya; Barkevik Strand; and the Bjørndalen quarry, Tvedalen), at Kariåsen in the Sandefjord area, Norway, and in the Burpala alkaline complex, Baikal area, Russia. The type...

... Alflarsenite 294 Tuften quarry, Tvedalen, Larvik, Vestfold, Norway a Raade et al. (2009) Larsen (2010) Almarudite 0.4 Bellerberg volcano, Ettringen, Eifel, Rhineland-Palatinate, Germany a Mihajlović et al. (2004) Schminke (2007) Aminoffite 1000 Långban deposit, Filipstad, Värmland...

...., Ertl, A., Haugen, A., Ellingsen, H.A., & Larsen, A.O. (2013) Tourmaline-group minerals from Norway, part II: Occurrences of luinaite-(OH) in Tvedalen, Lavik...

..., Norway. Eur. J. Mineral., 21, 893–900. 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, south Norway...