Meteoritical Bulletin: Entry for Northwest Africa 14253

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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: 1290 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	Eucrite-br
Recommended:			Eucrite-br [explanation]

This is 1 of 237 approved meteorites classified as Eucrite-br. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 6 Oct 2021

Writeup

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 Fs_41.9±12.7Wo_8.7±5.7, FeO/MnO 28.0±2.5 (n=4). Plagioclase An_89.7Ab_10.1Or_0.2(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 10 Jun 2023)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Photos:

Credit	Photos
Public domain photographs:
Jerome Gattacceca

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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