Meteoritical Bulletin: Entry for Northwest Africa 10549

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Northwest Africa 10549

Basic information

Name: Northwest Africa 10549
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10549
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 79.2 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	LL(L)3
Recommended:			LL(L)3 [explanation]

This is 1 of 24 approved meteorites classified as LL(L)3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 27 Feb 2016

Writeup

Writeup from MB 105:

Northwest Africa 10549 (NWA 10549)

(Northwest Africa)

Purchased: 2013 Feb

Classification: Ordinary chondrite (LL(L)3)

History: Purchased by Darryl Pitt in February 2013 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, fairly closely-packed chondrules (apparent diameter 1.3 ± 0.8 mm) are set in a finer matrix.

Geochemistry: Olivine (Fa_9.8-39.9, Cr₂O₃ in ferroan olivine 0.05-0.15 wt.%, mean 0.08±0.03 wt.%, N = 8), orthopyroxene (Fs_2.3-27.9Wo_0.6-2.3, N = 3), clinopyroxene (Fs_2.5Wo_38.7; Fs_18.9Wo_33.0, N = 2). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 4.35.

Classification: Ordinary chondrite (LL(L)3).

Specimens: 16.56 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2013 Feb
Mass (g):	79.2
Pieces:	1
Class:	LL(L)3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	9.8-39.9
Ferrosilite (mol%):	2.3-27.9
Wollastonite (mol%):	0.6-2.3
Magnetic suscept.:	4.35
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	16.56
Type spec location:	UWB
Main mass:	D. Pitt
Comments:	DP 733; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

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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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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