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Northwest Africa 10407
Basic information Name: Northwest Africa 10407
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10407
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 194.3 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  CO3
Recommended:  CO3    [explanation]

This is 1 of 642 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 18 Dec 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10407 (NWA 10407)

(Northwest Africa)

Purchased: 2015 Jul

Classification: Carbonaceous chondrite (CO3)

History: Purportedly found in Mauritania and purchased by Darryl Pitt in July 2015 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Small chondrules, mineral fragments and irregularly-shaped CAI are set in a deep brown matrix (~40 vol.%).

Geochemistry: Olivine (Fa0.8-65.0; Cr2O3 in ferroan olivine 0.10-0.48 wt.%, mean 0.28 wt.%, sd 0.16 wt.%, N = 9), orthopyroxene (Fs1.2-2.2Wo1.2-1.0, N = 3), diopside (Fs1.4Wo48.3), augite (Fs43.2Wo41.0).

Classification: Carbonaceous chondrite (CO3).

Specimens: 21.3 g including one polished thin section at UWB; main mass with DPitt.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015 Jul
Mass (g):194.3
Pieces:3
Class:CO3
Shock stage:low
Weathering grade:low
Fayalite (mol%):0.8-65.0
Ferrosilite (mol%):1.2-2.2
Wollastonite (mol%):1.2-1.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.3
Type spec location:UWB
Main mass:DPitt
Comments:MAC 162; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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