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Northwest Africa 14253
Basic information Name: Northwest Africa 14253
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14253
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 1290 g
Classification
  history:
Recommended:  Eucrite-br    [explanation]

This is 1 of 191 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14253 (NWA 14253)

(Northwest Africa)

Purchased: 2018

Classification: HED achondrite (Eucrite, brecciated)

Physical characteristics: Dark stone. Cut surface reveals dark interior with mm clasts.

Petrography: (J. Gattacceca, CEREGE) Brecciated rock with igenous clast in a clastic matrix. The clasts have a variety of texture (gabbroic, melt rock, subophitic). Main minerals are pyroxene (some exsolved, some zoned) and plagioclase (abundant). Accessory chromite, ilmenite, chromite, primary baryte, a variety of silica polymorph (sometimes as 100-200 grains, sometimes interspersed as small grains in pyroxene), rare sulfides and rare metal.

Geochemistry: Pyroxene Fs41.9±12.7Wo8.7±5.7, FeO/MnO 28.0±2.5 (n=4). Plagioclase An89.7Ab10.1Or0.2 (n=2). Chromite Cr#0.81.

Classification: Achondrite (eucrite, brecciated)

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

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018
Mass (g):1290
Pieces:1
Class:Eucrite-br
Weathering grade:low
Ferrosilite (mol%):41.9±12.7 (n=4)
Wollastonite (mol%):8.7±5.7
Magnetic suscept.:3.12
Classifier:L. Krämer Ruggiu, J. Gattacceca, CEREGE
Type spec mass (g):20.96
Type spec location:CEREGE
Main mass:Labenne
Finder:anonymous
Comments:work name LL85; 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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Photos:
CreditPhotos
Public domain photographs:
Jerome Gattacceca         
Geography: 
Coordinates:Unknown.

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

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