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Northwest Africa 10796
Basic information Name: Northwest Africa 10796
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10796
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 51.4 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  CK3/4
Recommended:  CK3/4    [explanation]

This is 1 of 3 approved meteorites classified as CK3/4.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Comments: Approved 27 Sep 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10796 (NWA 10796)

(Northwest Africa)

Purchased: 2016 Jan

Classification: Carbonaceous chondrite (CK3/4)

History: Purchased by Matéo Made Météor Gonzales in January 2016 from a dealer in Ouarzazate, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Irregularly shaped, separated chondrules (apparent diameter 600±400 μm) containing Cr-magnetite plus sparse fine grained CAI are set in a fine grained, reddish-brown matrix containing intermediate plagioclase, Cr-magnetite (altered to Fe hydroxides) and Ni-bearing troilite. Highly magnesian cores are present in some olivine grains.

Geochemistry: Olivine (Fa1.3-33.0, N = 3), orthopyroxene (Fs3.2-16.0Wo1.3-1.0, N = 3), clinopyroxene (Fs1.5Wo40.4; Fs11.9Wo48.5; N = 2). Semi-quantitative EDS spectra show that magnetite contain minor amount of Cr at levels typical for CK chondrites.

Classification: Carbonaceous chondrite (CK3/4).

Specimens: 10.33 g including one polished thin section at UWB; remainder with Mr. M. Gonzales.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2016 Jan
Mass (g):51.4
Pieces:1
Class:CK3/4
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):1.3-33.0
Ferrosilite (mol%):3.2-16.0
Wollastonite (mol%):1.3-1.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):10.33
Type spec location:PSF
Main mass:M. Gonzales
Comments:K298; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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