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Northwest Africa 15787
Basic information Name: Northwest Africa 15787
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15787
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 8.15 kg
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  L5
Recommended:  L5    [explanation]

This is 1 of 8877 approved meteorites (plus 5 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 4 Mar 2023
Writeuphelp
Writeup from MB 112:

Northwest Africa 15787 (NWA 15787)

(Northwest Africa)

Purchased: 2022 Oct

Classification: Ordinary chondrite (L5)

History: Purchased by Terry Boudreaux in October 2022 from a dealer in Zagora, Morocco.

Petrography: A. Irving, UWS, and J. Boesenberg, BrownU) Sparse glass-free equilibrated chondrules are present within a recrystallized assemblage containing kamacite (minimally stained in places), taenite, troilite, chromite, merrillite and chlorapatite.

Geochemistry: Olivine (Fa25.3±0.3, range Fa24.9-25.8, N = 9), low-Ca pyroxene (Fs21.2±0.4Wo1.6±0.4, range Fs20.4-21.5Wo1.0-2.1, N = 7).

Classification: Ordinary chondrite (L5).

Specimens: 20.5 g including one polished thin section at UWB; remainder with Boudreaux.

Data from:
  MB112
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2022 Oct
Mass (g):8148
Pieces:3
Class:L5
Shock stage:S2
Weathering grade:W0/1
Fayalite (mol%):25.3±0.3
Ferrosilite (mol%):21.2±0.4
Wollastonite (mol%):1.6±0.4
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):20.5
Type spec location:UWB
Main mass:Boudreaux
Comments:Work name RC168.2; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Boudreaux: Terry Boudreaux, Illinois, United States (private address)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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