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Northwest Africa 8776
Basic information Name: Northwest Africa 8776
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8776
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 56 g
Meteoritical Bulletin:  MB 106  (2018)  CK3
Recommended:  CK3    [explanation]

This is 1 of 75 approved meteorites classified as CK3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Comments: Approved 1 Mar 2017
Writeup from MB 106:

Northwest Africa 8776 (NWA 8776)

(Northwest Africa)

Purchased: 2014 Oct

Classification: Carbonaceous chondrite (CK3)

History: Purchased by Stefan Ralew in October 2014 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Separated, well-formed mm-sized chondrules containing Cr-magnetite together with sparse CAI occur within a stained matrix. Other minerals are olivine (some with very forsteritic cores), orthopyroxene, clinopyroxene, intermediate plagioclase, plus minor barite, calcite and pyrite.

Geochemistry: Olivine (relict core Fa1.2; predominantly Fa20.5-21.6, N = 4), orthopyroxene (Fs19.9-23.9Wo1.4-0.5, N = 3), clinopyroxene (Fs9.5Wo41.6).

Classification: Carbonaceous chondrite (CK3).

Specimens: 11.3 g including one polished thin section at UWB; main mass with Ralew.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2014 Oct
Mass (g):56
Shock stage:S2
Weathering grade:low
Fayalite (mol%):20.5-21.6
Ferrosilite (mol%):19.9-23.9
Wollastonite (mol%):1.4-0.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):11.3
Type spec location:UWB
Main mass:S. Ralew
Comments:RA10-5; submitted by A. Irving
   and collections
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)
Ralew: Stefan Ralew, Kunibertstra├če 29, 12524 Berlin, Germany; Website (private address)
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.
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     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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