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Northwest Africa 10668
Basic information Name: Northwest Africa 10668
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10668
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 47 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  H4
Recommended:  H4    [explanation]

This is 1 of 6033 approved meteorites (plus 11 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 15 May 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10668 (NWA 10668)

(Northwest Africa)

Purchased: 2015 Dec

Classification: Ordinary chondrite (H4)

History: Purchased by John Shea in December 2015 from John Higgins, who had acquired the stone from a Moroccan dealer in Laayoune in September 2015.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, relatively small chondrules (apparent diameter 250 ± 150 µm) occur in a recrystallized matrix containing abundant altered metal.

Geochemistry: Olivine (Fa19.5-20.0, N = 3), orthopyroxene (Fs17.1-17.2Wo1.2-1.3, N = 3), clinopyroxene (Fs5.9-6.3Wo45.8-45.3, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 15.3 g including one polished thin section at UWB; remainder with Mr. J. Shea.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Bloomfield, NJ
Date:P 2015 Dec
Mass (g):47
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):19.5-20.0
Ferrosilite (mol%):17.1-17.2
Wollastonite (mol%):1.2-1.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.3
Type spec location:UWB
Main mass:J. Shea
Comments:Shea16-2; 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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