Meteoritical Bulletin: Entry for Northwest Africa 15124

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Northwest Africa 15124

Basic information

Name: Northwest Africa 15124
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15124
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 430 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	H4
Recommended:			H4 [explanation]

This is 1 of 6493 approved meteorites (plus 2 unapproved names) classified as H4. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 23 Jul 2022

Writeup

Writeup from MB 111:

Northwest Africa 15124 (NWA 15124)

(Northwest Africa)

Purchased: 2020 Jul

Classification: Ordinary chondrite (H4)

History: Purchased by John Divelbiss in July 2020 from a Spanish dealer, who had obtained the material from a Moroccan source.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Relatively small, well-formed equilibrated chondrules containing devitrified glass and plagioclase are set in a relatively coarse grained matrix containing extensively altered kamacite, chromite, troilite, merrillite and abundant secondary Fe oxides, but no plagioclase.

Geochemistry: Olivine (Fa_19.4±0.3, range Fa_19.2-20.0, N = 10), low-Ca pyroxene (Fs_17.0±0.2Wo_1.3±0.3, range Fs_16.6-17.3Wo_0.9-1.7, N = 8).

Classification: Ordinary chondrite (H4).

Specimens: 22.4 g including one polished thin section at UWB; remainder with Mr. J. Divelbiss.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Spain
Date:	P 2020 Jul
Mass (g):	430
Pieces:	1
Class:	H4
Shock stage:	S2
Weathering grade:	W2/3
Fayalite (mol%):	19.4±0.3
Ferrosilite (mol%):	17.0±0.2
Wollastonite (mol%):	1.3±0.3
Classifier:	A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):	22.4
Type spec location:	UWB
Main mass:	J. Divelbiss
Comments:	Work name JD22-3; 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, 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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