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Northwest Africa 11510
Basic information Name: Northwest Africa 11510
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11510
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 500 g
Meteoritical Bulletin:  MB 106  (2018)  L4/5
Recommended:  L4/5    [explanation]

This is 1 of 82 approved meteorites (plus 1 unapproved name) classified as L4/5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Nov 2017
Writeup from MB 106:

Northwest Africa 11510 (NWA 11510)

(Northwest Africa)

Purchased: 2017 Jan

Classification: Ordinary chondrite (L4/5)

History: Purchased by Darryl Pitt in June 2017 from a dealer in Mauritania.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively well-formed chondrules occur in a recrystallized matrix containing stained metal. Portions of the specimen are cross-cut by much finer grained shock veins containing the same mineral assemblage as the majority of the specimen.

Geochemistry: Olivine (Fa25.1-25.2, N = 2), orthopyroxene (Fs20.2-20.6Wo1.4-1.3, N = 2), clinopyroxene (Fs8.1-9.2Wo45.1-43.9, N = 2).

Classification: Ordinary chondrite (L4/5).

Specimens: 30.57 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2017 Jan
Mass (g):500.2
Shock stage:S4
Weathering grade:W1
Fayalite (mol%):25.0-25.1
Ferrosilite (mol%):20.2-20.6
Wollastonite (mol%):1.4-1.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):30.57
Type spec location:UWB
Main mass:D. Pitt
Comments:Work name MVCH 312; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
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 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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