Meteoritical Bulletin: Entry for Northwest Africa 13146

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Northwest Africa 13146

Basic information

Name: Northwest Africa 13146
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13146
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 287 g

Classification
history:

Recommended:

Eucrite [explanation]

This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 17 Feb 2020

Writeup

Writeup from MB 109:

Northwest Africa 13146 (NWA 13146)

(Northwest Africa)

Purchased: 2019 Sep

Classification: HED achondrite (Eucrite)

Physical characteristics: Single stone, about 60% covered by fusion crust with flowlines.

Petrography: (J. Gattacceca, CEREGE) Fragmental breccia with lithic clasts (ophitic texture) set in a clastic matrix. Main minerals are Ca-pyroxene and plagioclase. Other minerals include ilmenite, troilite, metal.

Geochemistry: Ca-pyroxene Fs_57.8±3.4Wo_14.3±4.5, FeO/MnO=32.0±1.5 (n=5). Plagioclase An_88.4Ab_11.1Or_0.5(n=2).

Specimens: Type specimen at CEREGE, main mass with Kuntz

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Guelmin, Morocco
Date:	P 2019 Sep
Mass (g):	287
Pieces:	1
Class:	Eucrite
Weathering grade:	minor
Magnetic suscept.:	3.71
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	27.69
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K441; 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:

Photos:

Credit	Photos
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 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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