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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:
Meteoritical Bulletin:  MB 109  (2021)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 616 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 10 Jun 2023)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J., Bouvier A., Bullock E., Chennaoui Aoudjehane H., Debaille V., D’Orazio M., Komatsu M., Miao B. and Schrader D. L. (2021) The Meteoritical Bulletin, No. 109. Meteoritics & Planetary Science 56, 1626–1630.
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ryan Upchurch   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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