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Northwest Africa 10389
Basic information Name: Northwest Africa 10389
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10389
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 87.8 g
Meteoritical Bulletin:  MB 104  (2015)  CO3
Recommended:  CO3    [explanation]

This is 1 of 616 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 10 Dec 2015
Writeup from MB 104:

Northwest Africa 10389 (NWA 10389)

(Northwest Africa)

Purchased: 2014 Feb

Classification: Carbonaceous chondrite (CO3)

History: Purchased by Dr. David Gregory in February 2014 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules, angular mineral fragments and small, fine-grained CAI are set in a reddish-brown matrix (~30 vol.%).

Geochemistry: Olivine (Fa0.8-70.6, Cr2O3 in ferroan examples 0.03-0.20 wt.%, mean 0.08±0.07 wt.%, N = 7), orthopyroxene (Fs4.9Wo0.4), pigeonite Fs1.6Wo5.7), augite (Fs0.6-2.7Wo37.3-42.7).

Classification: Carbonaceous chondrite (CO3). Low/moderate weathering.

Specimens: 18.5 g including one polished thin section at ROM; remainder with DGregory.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2014 Feb
Mass (g):87.77
Shock stage:S2
Fayalite (mol%):0.8-70.6
Ferrosilite (mol%):4.9; 1.6
Wollastonite (mol%):0.4; 5.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):18.5
Type spec location:ROM
Main mass:DGregory
Comments:DGR020-15; submitted by A. Irving
   and collections
ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 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)
DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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