Meteoritical Bulletin: Entry for Northwest Africa 13343

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Northwest Africa 13343

Basic information

Name: Northwest Africa 13343
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13343
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 3 kg

Classification
history:

Meteoritical Bulletin:	MB 109	(2020)	Eucrite-mmict
Recommended:			Eucrite-mmict [explanation]

This is 1 of 281 approved meteorites classified as Eucrite-mmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 3 Jul 2020

Writeup

Writeup from MB 109:

Northwest Africa 13343 (NWA 13343)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite, monomict)

History: The meteorite was purchased from a meteorite dealer in Morocco.

Physical characteristics: Many greyish fragments some of which partly covered with fusion crust.

Petrography: The meteorite is a coarse-grained basaltic breccia predominantly composed of exsolved pyroxene and often lath-shaped calcic plagioclase up to 1.5 mm in size. Minor phases include silica, chromite, FeS, and ilmenite. No metallic iron has been detected. The meteorite is heavily fractured.

Geochemistry: low-Ca pyroxene: Fs_63.2±0.4Wo_2.3±0.4(Fs_62.5-63.8Wo_1.8-3.2, n=13, FeO/MnO=27-30); Ca-pyroxene: Fs_27.6±0.7Wo_44.1±0.5(Fs_25.3-28.3Wo_43.6-45.8, n=16, FeO/MnO=25-31); calcic plagioclase: An_89.2±0.9(An_87.6-90.3, n=14)

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2019
Mass (g):	3000
Pieces:	many
Class:	Eucrite-mmict
Shock stage:	moderate
Weathering grade:	low
Ferrosilite (mol%):	63.2; 27.6
Wollastonite (mol%):	2.3; 44.1
Classifier:	A. Greshake, MNB
Type spec mass (g):	23.3
Type spec location:	MNB
Main mass:	Said Yousfi and Martin Goff
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Said Yousfi

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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