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Northwest Africa 11456
Basic information Name: Northwest Africa 11456
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11456
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 36.5 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  CV3
Recommended:  CV3    [explanation]

This is 1 of 537 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 30 Oct 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11456 (NWA 11456)

(Northwest Africa)

Purchased: 2016 Sep

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Gary Fujihara in September 2016 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, spherical to irregularly shaped chondrules (mostly granular, some PO, some rimmed, apparent diameter 650±400 μm) plus irregularly shaped, elongate, very fine grained CAI occur in a black, opaque matrix (~40 vol.%).

Geochemistry: Olivine (Fa1.8-71.3, N = 3), orthopyroxene (Fs0.9-1.0Wo1.0-5.0, N = 2), diopside (Fs0.6Wo45.4), augite (Fs45.4Wo47.5). Oxygen isotopes (K. Ziegler, UNM): analyses of acid-washed subsamples by laser fluorination gave, respectively, δ17O -4.233, -4.013, -11.359; δ18O 0.299, 0.441, -7.338; Δ17O -4.391, -4.246, -7.485 per mil.

Classification: Carbonaceous chondrite (CV3).

Specimens: 7.3 g including one polished thin section at UWB; remainder with Mr. G. Fujihara.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016 Sep
Mass (g):36.49
Pieces:2
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):1.8-71.3
Ferrosilite (mol%):0.9-1.0
Wollastonite (mol%):1.0-5.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):7.3
Type spec location:UWB
Main mass:G. Fujihara
Comments:Work name GF16-3; submitted by A. Irving
Plots: O isotopes:  
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
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 Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7354 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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