Meteoritical Bulletin: Entry for Northwest Africa 15002

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Northwest Africa 15002

Basic information

Name: Northwest Africa 15002
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15002
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 1050 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	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 20 Jun 2022

Writeup

Writeup from MB 111:

Northwest Africa 15002 (NWA 15002)

(Northwest Africa)

Purchased: 2022 Jan

Classification: Ordinary chondrite (L3)

History: Purchased by Marcin Cimala in January 2022 from a Moroccan dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed, closely-packed unequilibrated chondrules (apparent diameter 940±520 µm, N = 25) containing devitrified glass are set in a fine grained matrix containing stained kamacite, troilite and rare chromite.

Geochemistry: Olivine (Fa_25.1±23.4, range Fa_8.0-98.7, N = 13; Cr₂O₃ in ferroan olivine 0.01-0.18 wt.%, mean 0.11±0.06 wt.%, N = 14), low-Ca pyroxene (Fs_18.5±12.2Wo_1.0±0.7, range Fs_2.9-27.3Wo_0.2-2.0, N = 4), pigeonite (Fs_22.6Wo_14.3). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 4.48.

Classification: Ordinary chondrite (L3).

Specimens: 40.0 g including one polished thin section at UWB; remainder with Mr. M. Cimala.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2022 Jan
Mass (g):	1050
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W1/2
Fayalite (mol%):	25.1±23.4
Ferrosilite (mol%):	18.5±12.2
Wollastonite (mol%):	1.0±0.7
Magnetic suscept.:	4.48
Classifier:	A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):	40.0
Type spec location:	UWB
Main mass:	M. Cimala
Comments:	Work name MC 199; 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)
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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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