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Northwest Africa 10261
Basic information Name: Northwest Africa 10261
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10261
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 127 g
Meteoritical Bulletin:  MB 105  (2016)  CV3
Recommended:  CV3    [explanation]

This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 24 Sep 2016
Writeup from MB 105:

Northwest Africa 10261 (NWA 10261)


Purchased: 2014

Classification: Carbonaceous chondrite (CV3)

History: The meteorite was purchased in Guelmim town, Morocco, from a nomad seller, including around a large piece and two polished end-cut specimens, altogether 127 g.

Physical characteristics: A 27 g specimen is an unfractured unit with homogeneous appearance, without fusion crust, but rounded and rough surfaces

Petrography: Around a dozen of AOAs could be observed at each cm2 of the thin section with size up to 2 mm, and a few CAI grains were also present. Chondrules 36 vol%; AOAs 25 vol% with size 0.2-2.6 mm; matrix is 38 vol% of sample. The average chondrule size is 0.8 mm (range: 0.2-2.6 mm). The minerals are fractured and mechanical twins are present in pyroxenes; olivines show mosaicism. Main minerals: olivine, pyroxene, opaques (troilite, magnetite, pentlandite), few feldspars. About 70-90% of troilite and metal in opaque chondrules is oxidized, opaque veins are tranformed to iron oxides.

Geochemistry: Mineral composition and geochemistry: olivine Fa26.3±27.7 (Fa20.6-78.8, N=58), cpx: Fs12.2±8.9Wo24.5±14.5 (Fs0-30.8Wo5.5-45.3 N=21); and opx: Fs7.7±5.7Wo1.9±1.9, (Fs0-20.6Wo0.0-4.7, N=14) (measurements with EPMA).

Classification: CV3, S3

Specimens: 2 specimens, total 127 g. 27 g CSFK; main mass, Zs. Kereszty, private collection

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco, Guelmim
Date:P 2014
Mass (g):127
Shock stage:medium
Weathering grade:medium
Classifier:A. Kereszturi. I. Gyollai, M. Szabo, Zs. Kereszty, CSFK
Type spec mass (g):27
Type spec location:CSFK
Main mass:Zs. Kereszty
Finder:unknown nomad
Comments:Submitted by A. Kereszturi, Zs. Kereszty
   and collections
CSFK: Research Center for Astronomy and Earth Sciences, H-1121 Budapest, Konkoly Thege Miklós út 15-17.l Hungary, Hungary (institutional address; updated 7 Apr 2015)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 1929 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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