Meteoritical Bulletin: Entry for Northwest Africa 2247

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Northwest Africa 2247

Basic information

Name: Northwest Africa 2247
This is an OFFICIAL meteorite name.
Abbreviation: NWA 2247
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass: 8.6 g

Classification
history:

Meteoritical Bulletin:	MB 88	(2004)	Eucrite-pmict
MetBase:	v. 7.1	(2006)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 409 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Writeup

Writeup from MB 88:

Northwest Africa 2247

Northwest Africa

Purchased 2003 January 1

Achondrite (eucrite, polymict)

A fully crusted stone (8.6 g) was purchased by M. Zicaro. Classification and mineralogy (M. Bourot-Denise, MNHNP): overall grain size is rather fine; monocrystalline diogenitic clasts, fine basaltic clasts of pigeonite with augite exsolutions, SiO₂-troilite-rich clasts. Matrix essentially consists of pyroxene (Fs_21.8) and plagioclase (An_72.3-90.0); abundant chromite-ilmenite associations; rare, small Fe-Ni metal grains. Low shock stage, weathering grade W1. Specimens: type specimen 1.7 g, MNHNP; main mass with buyer.

Data from:
  MB88
  Table 4
  Line 174:

Origin or pseudonym:	Morocco
Date:	P 1 Jan 2003
Mass (g):	8.6
Pieces:	1
Class:	Euc pm
Shock stage:	S2
Weathering grade:	W1
Ferrosilite (mol%):	21.8
Classifier:	M. Bourot-Denise, MNHNP. Magnetic measurements by P. Rochette, CEREGE, Marseille
Type spec mass (g):	1.7
Type spec location:	MNHN

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)
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
MNHN: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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