Meteoritical Bulletin: Entry for Northwest Africa 13922

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Northwest Africa 13922

Basic information

Name: Northwest Africa 13922
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13922
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass: 5.15 kg

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	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 25 Apr 2021

Writeup

Writeup from MB 110:

Northwest Africa 13922 (NWA 13922)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (H4)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005, subsequently donated to PSF and in January 2021 purchased by Kevin Sevey.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed relatively small, equilibrated chondrules are set in a relatively coarse grained matrix containing stained kamacite, chromite, chlorapatite, troilite and pentlandite. Both clear glass and devitrified glass are present.

Geochemistry: Olivine (Fa_18.2±0.3, range Fa_18.0-19.0, N = 8), low-Ca pyroxene (Fs_16.1±0.3Wo_1.4±0.1, range Fs_15.8-16.7Wo_1.3-1.5, N = 9), augite (Fs_6.1±0.4Wo_45.1±0.4, range Fs_5.8-6.3Wo_44.8-45.3, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 203 g including one polished thin section at PSF; remainder with Mr. K. Sevey.

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Munich
Date:	P 2005
Mass (g):	5146
Pieces:	1
Class:	H4
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	18.2±0.3
Ferrosilite (mol%):	16.1±0.3
Wollastonite (mol%):	1.4±0.1
Classifier:	A. Irving, UWS, and J. Boesenberg, Brown U.
Type spec mass (g):	203
Type spec location:	PSF
Main mass:	K. Sevey
Comments:	Work name KS-1; submitted by A. Irving

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
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., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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