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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:help 3 kg
Classification
  history:
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Jul 2020
Writeuphelp
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: Fs63.2±0.4Wo2.3±0.4 (Fs62.5-63.8Wo1.8-3.2, n=13, FeO/MnO=27-30); Ca-pyroxene: Fs27.6±0.7Wo44.1±0.5 (Fs25.3-28.3Wo43.6-45.8, n=16, FeO/MnO=25-31); calcic plagioclase: An89.2±0.9 (An87.6-90.3, 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)
Find references in NASA ADS:
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Photos:
CreditPhotos
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 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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