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Viksdalen
Basic information Name: Viksdalen
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1992
Country: Norway
Mass:help 470 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Eucrite
Meteoritical Bulletin:  MB 86  (2002)  Eucrite
MetBase:  v. 7.1  (2006)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 429 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Writeuphelp
Writeup from MB 86:

Viksdalen

Norway

Found 1992 July 4

Achondrite (eucrite)

Fragments of a single 470 g stone were found by Steffan Hatlestad, a 12-year-old boy, while walking in the mountains.  Mineralogy and classification (G. Raade, UOslo): the meteorite is a breccia with relic primary gabbroic textures. The main minerals are plagioclase (with undulatory extinction) and pyroxene (low-Ca pigeonite). They occur as angular clasts (0.05 to 0.7 mm) in a fine-grained groundmass; subrounded pyroxene grains may be up to 1.2 mm. Rounded clasts 2–3 mm in size show coarse ophitic to subophitic (gabbroic) textures. Accessory minerals are silica, ilmenite, titanian chromite, and troilite. Isolated plagioclase clasts and plagioclase laths from the larger, gabbroic clasts have similar composition, An86 (mean of three analyses). Low Ca-pyroxene has a composition of Fs59Wo2. Exsolved augite lamellae vary in composition from Fs26Wo44 to Fs31Wo36. Scanning an exsolved pyroxene grain gave a bulk composition of Fs44Wo21. The host pyroxene has small inclusions of troilite, ilmenite, or plagioclase. Weathering grade:  W0. Chemical composition (G. Raade, UOslo): SiO2 = 49.03%, Al2O3 = 11.58%, Fe2O3 = 0.82%, FeO = 17.85%, MnO = 0.53%, MgO = 7.12%, CaO = 9.85%, Na2O = 0.58%, K2O = 0.05%, TiO2 = 0.92%, P2O5 = 0.07%. Specimens: main mass and type specimen, 459 g plus thin section, UOslo.

Institutions
   and collections
UOslo: Natural Science Museum, University of Oslo, 1172 - Blindern, 0318 Oslo, Norway (institutional address; updated 16 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 86, MAPS 37, A157-A184 (2002)
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Geography:

Norway
Coordinates:
     Catalogue of Meteorites:   (61° 2'N, 6° 3'E)
     Recommended::   (61° 2'N, 6° 3'E)

Statistics:
     This is 1 of 3 approved meteorites from Sogn Og Fjordane, Norway
     This is 1 of 13 approved meteorites from Norway (plus 3 impact craters)
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