Meteoritical Bulletin: Entry for Northwest Africa 10838

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Northwest Africa 10838

Basic information

Name: Northwest Africa 10838
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10838
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 298 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	L4
Recommended:			L4 [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 24 Sep 2016

Writeup

Writeup from MB 105:

Northwest Africa 10838 (NWA 10838)

(Northwest Africa)

Purchased: 2016 Apr

Classification: Ordinary chondrite (L4)

History: Purchased by John Higgins in April 2016 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Closely-packed, well-formed chondrules (apparent diameter 500±200 μm) are set in a sparse matrix containing altered metal.

Geochemistry: Olivine (Fa_22.0-22.1, N = 3), orthopyroxene (Fs_5.2-19.0Wo_0.3-2.9, N = 3), subcalcic augite (Fs_13.4Wo_34.8), augite (Fs_13.8Wo_39.3).

Classification: Ordinary chondrite (L4).

Specimens: 21.8 g including one polished thin section at UWB; remainder with Mr. J. Higgins.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Zagora
Date:	P 2016 Apr
Mass (g):	298
Pieces:	4
Class:	L4
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	22.0-22.1
Ferrosilite (mol%):	5.2-19.0
Wollastonite (mol%):	0.3-2.9
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	21.8
Type spec location:	UWB
Main mass:	J. Higgins
Comments:	JH16-7; 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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Kenneth Alvarez Castillo

Geography:

Coordinates:

Unknown.

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