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Northwest Africa 8268
Basic information Name: Northwest Africa 8268
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8268
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 3.23 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Achondrite-ung
Recommended:  Achondrite-ung    [explanation]

This is 1 of 99 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Approved 31 Mar 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8268 (NWA 8268)

Northwest Africa

Purchased: 2013 May 12

Classification: Ungrouped achondrite

History: The stone was bought by R. Lenssen from a Moroccan meteorite dealer in Agadir in May 2013.

Physical characteristics: A single cm-sized stone without fusion crust, showing mm-sized bright green crystals and incrustations of soil.

Petrography: (J. Gattacceca, CEREGE): Medium-grained plutonic texture. Main minerals are diopside, lobate forsterite, calcic plagioclase. Accessory troilite, rare metal. Spherical vesicles up to 300 μm in diameter are present.

Geochemistry: Clinopyroxene Fs2.4±0.0Wo45.3±0.2, n=3, FeO/MnO=19, Al2O3=2.7 wt.%, Cr2O3=1.0 wt.%; plagioclase An87.1±1.1Ab12.9±1.1Or0.1±0.0, n=4; olivine Fa5.8±0.1, n=4, FeO/MnO=35, CaO=0.35 wt.%, Cr2O3=0.40 wt.%. Magnetic susceptibility log χ = 2.55 (χ in 10-9 m3/kg).

Classification: Achondrite (ungrouped). The texture, mineralogy and geochemistry indicate pairing with NWA 7325 despite a slight discrepancy with the olivine geochemistry.

Specimens: 0.96 g and a polished section at CEREGE. Main mass with Rob Lenssen.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Agadir, Morocco
Date:P 2013 May 12
Mass (g):3.23
Pieces:1
Class:Achondrite-ung
Weathering grade:low
Fayalite (mol%):5.8±0.1
Ferrosilite (mol%):2.4±0.0
Wollastonite (mol%):45.3±0.2
Magnetic suscept.:2.45
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):0.96
Type spec location:CEREGE
Main mass:R. Lenssen
Comments:Submitted by J. Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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