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Northwest Africa 8680
Basic information Name: Northwest Africa 8680
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8680
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 111 g
Meteoritical Bulletin:  MB 106  (2018)  CO3
Recommended:  CO3    [explanation]

This is 1 of 614 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 14 Mar 2017
Writeup from MB 106:

Northwest Africa 8680 (NWA 8680)

(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, mineral fragments and irregularly shaped CAI occur in a fairly sparse, red-brown matrix containing minor altered metal.

Geochemistry: Olivine (Fa0.3-40.6; Cr2O3 in ferroan olivine 0.09-0.19 wt.%, mean 0.12±0.04 wt.%, N = 7), orthopyroxene (Fs0.6-10.4Wo1.1-0.4, N = 3), clinopyroxene (Fs1.7Wo45.2), diopside in CAI (Fs0.5Wo48.9).

Classification: Carbonaceous chondrite (CO3).

Specimens: 20.1 g including one polished thin section at UWB. The remaining material is held by Mr. J. Higgins.

Data from:
  Table 0
  Line 0:
Place of purchase:Laayoune
Date:P 2014 May
Mass (g):111
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):0.3-40.6
Ferrosilite (mol%):0.6-10.4
Wollastonite (mol%):1.1-0.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:J. Higgins
Comments:JH14-16; 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)
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 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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