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Northwest Africa 12515
Basic information Name: Northwest Africa 12515
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12515
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 2.4 kg
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  L4
Recommended:  L4    [explanation]

This is 1 of 1715 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Feb 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12515 (NWA 12515)

(Northwest Africa)

Purchased: 2018 Aug

Classification: Ordinary chondrite (L4)

History: Purchased by John Higgins and Igor Litovsky in August 2018 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, equilibrated chondrules are set in a finer matrix containing altered metal.

Geochemistry: Olivine (Fa24.6-25.4, N = 3), orthopyroxene (Fs1.7-20.6Wo0.6-1.5, N = 3), clinopyroxene (Fs2.3Wo38.5; Fs2.8Wo46.8; N = 2).

Classification: Ordinary chondrite (L4).

Specimens: 53 g including one polished thin section at UWB; remainder jointly with Mr. J. Higgins and Mr. I. Litovsky.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2018 Aug
Mass (g):2395
Pieces:10
Class:L4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):24.6-25.4
Ferrosilite (mol%):1.7-20.6
Wollastonite (mol%):0.6-1.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):53
Type spec location:UWB
Main mass:J. Higgins/I. Litovsky
Comments:Work name JH18-3; 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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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