Meteoritical Bulletin: Entry for Northwest Africa 13037

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Northwest Africa 13037

Basic information

Name: Northwest Africa 13037
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13037
Observed fall: No
Year found: 2018
Country: Algeria
Mass: 463 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	L3
Recommended:			L3 [explanation]

This is 1 of 848 approved meteorites (plus 2 unapproved names) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 23 Dec 2019

Writeup

help

Writeup from MB 108:

Northwest Africa 13037 (NWA 13037)

Algeria

Purchased: 2018 Dec

Classification: Ordinary chondrite (L3)

History: Purportedly found near Djelfa, Algeria, and purchased from the finder by Naji Ben Faraji and Mohamed Brahim Sueilem in December 2018 in Adrar, Algeria.

Physical characteristics: Very fresh specimen (465 g) coated by black fusion crust.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Closely packed, well-formed chondrules (apparent diameter 780±350 µm, N = 22) are set in a sparse matrix containing stained metal.

Geochemistry: Olivine (Fa_22.0±6.5(range Fa_13.2-33.6, N = 18; Cr₂O₃ in ferroan examples 0.01-0.07 wt.%, mean 0.02±0.02 wt.%, N = 15), low-Ca pyroxene (Fs_17.9±5.3Wo_1.7±1.7(range Fs_9.9-23.0Wo_0.9-4.3, N = 6), subcalcic augite (Fs_11.7Wo_22.8), augite (Fs_14.6±7.4Wo_37.6±3.0(range Fs_9.4-19.8Wo_39.7-35.5, N = 2). Magnetic susceptibility log χ = 4.77.

Classification: Ordinary chondrite (L3).

Specimens: 27.6 g including one polished thin section at UWB; remainder held jointly by N. Ben Faraji and M. Brahim Sueilem.

Data from:
  MB108
  Table 0
  Line 0:

Origin or pseudonym:	Djelfa
Place of purchase:	Adrar, Algeria
Date:	P 2018 Dec
Mass (g):	463
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W0/1
Fayalite (mol%):	22.0±6.5
Ferrosilite (mol%):	17.9±5.3
Wollastonite (mol%):	1.7±1.7
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	27.6
Type spec location:	UWB
Main mass:	N. Ben Faraji/M. Brahim Sueilem
Comments:	Work name MN08; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

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:

Algeria

Algeria

Coordinates:

Unknown.

Statistics:
This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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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