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Northwest Africa 8787
Basic information Name: Northwest Africa 8787
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8787
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 23.9 g
Meteoritical Bulletin:  MB 105  (2016)  CO3
Recommended:  CO3    [explanation]

This is 1 of 573 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 19 Apr 2016
Writeup from MB 105:

Northwest Africa 8787 (NWA 8787)

(Northwest Africa)

Purchased: 2014 Jul

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Fabien Kuntz in July 2014 from a dealer in Foum El Hisn, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, small chondrules and fine grained CAI (up to 1.2 mm) in a finer-grained matrix containing some stained metal.

Geochemistry: Olivine (Fa0.4-40.9; Cr2O3 in ferroan examples 0.08-0.15 wt.%, mean 0.11±0.03 wt.%, N = 8), orthopyroxene (Fs1.0-7.9Wo0.9-1.6, N = 3), augite (Fs4.7Wo39.7), diopside (Fs0.9Wo50.0).

Classification: Carbonaceous chondrite (CO3).

Specimens: 4.86 g including one polished thin section at PSF; main mass with Kuntz.

Data from:
  Table 0
  Line 0:
Place of purchase:Foum El Hisn
Date:P 2014 Jul
Mass (g):23.9
Shock stage:S2
Weathering grade:low
Fayalite (mol%):0.4-40.9
Ferrosilite (mol%):1.0-7.9
Wollastonite (mol%):0.9-1.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4.86
Type spec location:PSF
Main mass:F. Kuntz
Comments:K230; submitted by P. Sipiera
   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)
Kuntz: Fabien Kuntz, France; Website (private address)
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 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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