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Northwest Africa 13833
Basic information Name: Northwest Africa 13833
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13833
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 65 g
Classification
  history:
Recommended:  Diogenite-pm    [explanation]

This is 1 of 49 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 23 May 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13833 (NWA 13833)

(Northwest Africa)

Purchased: 2019 Sep

Classification: HED achondrite (Diogenite, polymict)

Physical characteristics: Single greenish stone, lacking fusion crust

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mm-sized lithic and mineral clasts in a clastic matrix. Lithic clasts have intersertal texture. Melt rock clasts are also present. Main minerals are pyroxene (some exsolved) and plagioclase. Other minerals: chromite (to 50 µm), troilite, ilmenite, metal, silica polymorph.

Geochemistry: Low-Ca pyroxene Fs26.6±2.7Wo2.2±0.2, FeO/MnO = 33.2±3.5 (n=10). Intersertal eucritic clasts Fs586Wo5.8, FeO/MnO = 31.3 (n=2). Plagioclase An92.9±1.2Ab6.9±1.2Or0.3±0.1 (n=4). Chromite Cr# = 0.76 (n=1).

Classification: Achondrite (diogenite, polymict). This contain contains less than 10 vol% of eucrite clasts.

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  MB110
  Table 0
  Line 0:
Date:P 2019 Sep
Mass (g):65
Pieces:1
Class:Diogenite-pm
Fayalite (mol%):26.6±2.7 (n=10)
Ferrosilite (mol%):2.2±0.2
Magnetic suscept.:4.12
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):13.93
Type spec location:CEREGE
Main mass:Kuntz
Finder:anonymous
Comments:work name K442; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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