Meteoritical Bulletin: Entry for Northwest Africa 11344

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Northwest Africa 11344

Basic information

Name: Northwest Africa 11344
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11344
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 7.25 kg

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	L3-4
Recommended:			L3-4 [explanation]

This is 1 of 7 approved meteorites classified as L3-4. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 28 Jun 2017

Writeup

help

Writeup from MB 106:

Northwest Africa 11344 (NWA 11344)

(Northwest Africa)

Purchased: 2016 Oct

Classification: Ordinary chondrite (L3-4)

Petrography: (K. Metzler, IfP) Ordinary chondrite breccia, consisting of well-preserved chondrules of various textural types, set in a finer-grained matrix. The mean apparent chondrule size is 630 μm (240-1800 μm; n=49). Accessory phases are FeNi metal and troilite, mostly residing outside of chondrules. Olivine in the majority of components is equilibrated, but some components (chondrules, chondrule fragments) of petrologic type 3 are admixed.

Geochemistry: The mean olivine and low-Ca pyroxene compositions of the type 4 host are Fa_25.3±0.4(Fa_25-26; n=11) and Fs_18.6±4.1(Fs_9-22; n=12). The mean compositions in the type 3 fragments are Fa_10.2±6.2(Fa_3-29; n=16) and Fs_6.0±3.4(Fs_1-14; n=13).

Classification: L chondrite based on apparent chondrule size. Petrologic types based on the chemical variation of olivine and pyroxene.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2016 Oct
Mass (g):	7245
Pieces:	3
Class:	L3-4
Shock stage:	S3
Weathering grade:	W0/1
Fayalite (mol%):	25.3±0.4, 10.2±6.2
Ferrosilite (mol%):	18.6±4.1, 6.0±3.4
Wollastonite (mol%):	1.4±1.1, 0.5±0.2
Classifier:	K. Metzler, IfP
Type spec mass (g):	21
Type spec location:	IfP
Main mass:	Mirko Graul, Bernau, Germany
Comments:	Submitted by K. Metzler, IfP

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

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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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Dirk Hohmann
Franco Vignato
Ryan Upchurch
Solar Anamnesis

Geography:

Coordinates:

Unknown.

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