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Northwest Africa 13492
Basic information Name: Northwest Africa 13492
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13492
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 129.5 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 513 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 14 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13492 (NWA 13492)

(Northwest Africa)

Purchased: 2019 Oct

Classification: HED achondrite (Eucrite)

History: Bought from a dealer from northwest Africa.

Petrography: (J. Gattacceca, CEREGE) Brecciated igneous rock with mostly subophitic texture. Grain size is ~1.5 mm grain size although some clasts have smaller grainsize. Main minerals are low-Ca pyroxene (exsolved) and plagioclase. Other minerals: silica polymorph (to 100 μm), ilmenite, troilite, metal.

Geochemistry: Low-Ca pyroxene Fs65.5±1.9Wo2.2±0.5, FeO/MnO = 31.3±0.8 (n=5). Plagioclase An87.0Ab12.6Or0.4 (n=2).

Classification: Achondrite (eucrite). The low-Ca pyroxene is unusually iron rich (Fs65.6).

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Munich, Germany
Date:P 2019 Oct
Mass (g):129.5
Pieces:1
Class:Eucrite
Ferrosilite (mol%):65.5±1.9 (n=5)
Wollastonite (mol%):2.2±0.5
Magnetic suscept.:3.21
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):21.1
Type spec location:CEREGE
Main mass:Kuntz
Comments:work name K473; 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. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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