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Northwest Africa 13214
Basic information Name: Northwest Africa 13214
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13214
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 2.5 g
Classification
  history:
Recommended:  Achondrite-ung    [explanation]

This is 1 of 99 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Approved 5 Apr 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13214 (NWA 13214)

(Northwest Africa)

Purchased: 2019

Classification: Ungrouped achondrite

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

Physical characteristics: Small brownish fragment without fusion crust.

Petrography: The meteorite shows a cumulate texture of up to 1 mm sized high-Ca pyroxene, calcic plagioclase, and less abundant forsteritic olivine often poikilitically enclosed by plagioclase. Pyroxene appears slightly greenish due to its high Cr-content and typically shows reaction textures with adjacent plagioclase. Plagioclase displays a mottled texture but has not been converted into maskelynite. Minor phases include Cr-bearing iron sulfide, taenite and kamacite. Some brownish alteration products are present in the thin section studied.

Geochemistry: olivine: Fa3.3±0.1 (Fa3.2-3.4, FeO/MnO=29±3, n=10), contains 0.26±0.02 wt% Cr2O3 and 0.35±0.03 wt% CaO; Ca-pyroxene: Fs1.3±0.1Wo45.1±0.2 (Fs1.2-1.4Wo44.7-45.5, FeO/MnO=16±11, n=13), contains 0.68±0.03 wt% Cr2O3 and 2.68±0.11 wt% Al2O3; calcic plagioclase: An89.1±0.9Ab10.9±0.9 (An87.2-90.2Ab9.8-12.8, n=15)

Classification: Achondrite (ungrouped). Likely paired with NWA 7325.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Laayoune, Morocco
Date:P 2019
Mass (g):2.5
Pieces:1
Class:Achondrite-ung
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):3.3
Ferrosilite (mol%):1.3
Wollastonite (mol%):45.1
Classifier:A. Greshake, MNB
Type spec mass (g):0.5
Type spec location:MNB
Main mass:Larbi Chnaoui
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)
Denis gourgues      
Public domain photographs:
Ansgar Greshake      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7374 approved meteorites from (Northwest Africa) (plus 1957 unapproved names)

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