Meteoritical Bulletin: Entry for Northwest Africa 11452

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Northwest Africa 11452

Basic information

Name: Northwest Africa 11452
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11452
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass: 751 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	LL4-6
Recommended:			LL4-6 [explanation]

This is 1 of 83 approved meteorites classified as LL4-6. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 26 Sep 2017

Writeup

Writeup from MB 106:

Northwest Africa 11452 (NWA 11452)

(Northwest Africa)

Purchased: 2017 Apr

Classification: Ordinary chondrite (LL4-6)

History: Purchased by Fabien Kuntz in April 2017 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Equilibrated breccia consisting predominantly of closely packed type 6 chondrite clasts containing rare chondrule remnants plus sparse well-formed chondrules set in a clastic matrix.

Geochemistry: Olivine (predominantly Fa_30.3-31.3, N = 3; one Fa_20.3core was found), orthopyroxene (Fs_24.7Wo_1.6; Fs_14.6Wo_0.5; N = 2), clinopyroxene (Fs_10.1-10.4Wo_43.7-44.3, N = 2).

Classification: Ordinary chondrite (LL4-6 breccia).

Specimens: 21.53 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2017 Apr
Mass (g):	750.7
Pieces:	1
Class:	LL4-6
Shock stage:	S2
Weathering grade:	W1/2
Fayalite (mol%):	30.3-31.3
Ferrosilite (mol%):	14.6-24.7
Wollastonite (mol%):	0.5-1.6
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	21.53
Type spec location:	PSF
Main mass:	Kuntz
Comments:	Work name K363; 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)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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Geography:

Coordinates:

Unknown.

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

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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