Meteoritical Bulletin: Entry for Northwest Africa 12963

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Northwest Africa 12963

Basic information

Name: Northwest Africa 12963
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12963
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 185 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	Eucrite-cm
Recommended:			Eucrite-cm [explanation]

This is 1 of 55 approved meteorites classified as Eucrite-cm. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 29 Nov 2019

Writeup

Writeup from MB 108:

Northwest Africa 12963 (NWA 12963)

(Northwest Africa)

Purchased: 2019 May

Classification: HED achondrite (Eucrite, cumulate)

Petrography: (J. Gattaccecan, CEREGE) Brecciated igneous rock. Main minerals are mm-sized pyroxene and plagioclase. Other minerals include Fe,Ni metal, troilite, chromite (to 100 µm).

Geochemistry: Low-Ca pyroxene Fs_33.3±0.4Wo_3.4±0.5, FeO/MnO=30.5 (n=3). Plagioclase An₉₃Ab_6.7Or_0.2(n=2). Chromite Cr# 0.81.

Classification: achondrite, eucrite

Specimens: Type specimen and a polished section at CEREGE. Main mass with Kuntz.

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Zagora, Morocco
Date:	P 2019 May
Mass (g):	185
Pieces:	1
Class:	Eucrite-cm
Ferrosilite (mol%):	33.3±0.4 (n=3)
Wollastonite (mol%):	3.4±0.5
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	20.3
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K431; 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 Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

Find references in NASA ADS:
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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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