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Northwest Africa 8676
Basic information Name: Northwest Africa 8676
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8676
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 45 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 501 approved meteorites classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 23 Sep 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 8676 (NWA 8676)

(Northwest Africa)

Purchased: 2014 May

Classification: Carbonaceous chondrite (CO3)

History: Purchased by John Higgins in May 2014 from a dealer in Laayoune, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules (230±130 µm, N=20) and rare, very fine-grained CAI in a sparse, brown matrix (40 vol%) rich in ferroan olivine and containing sparse altered kamacite, taenite and troilite.

Geochemistry: Olivine (Fa0.7-43.4; Cr2O3 in ferroan olivine 0.07-0.19 wt.%, N = 7), orthopyroxene (Fs0.9-6.3Wo0.9-4.4, N = 3), clinopyroxene (Fs2.0-4.0Wo47.2-45.2).

Classification: Carbonaceous chondrite (CO3).

Specimens: 9 g including one polished thin section at UWB. The remaining material is held by Mr. J. Higgins.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Laayoune
Date:P 2014 May
Mass (g):45
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.7-43.4
Ferrosilite (mol%):0.9-6.3
Wollastonite (mol%):0.9-4.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):9
Type spec location:UWB
Main mass:J. Higgins
Comments:JH14-14; submitted by A. Irving
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
A. Irving   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6528 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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