Meteoritical Bulletin: Entry for Northwest Africa 12468

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Northwest Africa 12468

Basic information

Name: Northwest Africa 12468
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12468
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 25.4 g

Classification
history:

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

This is 1 of 576 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 22 Feb 2019

Writeup

Writeup from MB 108:

Northwest Africa 12468 (NWA 12468)

(Northwest Africa)

Purchased: 2015 Jun

Classification: HED achondrite (Eucrite)

History: Purchased in june 2015 at Saint Marie aux Mines mineral show

Physical characteristics: Dark-brown crusted stone. Cut surface reveals light-gray interior.

Petrography: Igneous rock with brecciated texture, metal-rich clasts. Main minerals are pyroxene and plagioclase. Accessories minerals are silica polymorph, metal, polycristalline troilite and chromite.

Geochemistry: Low-Ca pyroxene Fs_46.3±6.2Wo_9.3±5.8(n=7), rangeFs_35.9-54.7Wo_21.3-1.8, FeO/MnO=33.6±2.2. Plagioclase An_93.9±0.5Ab_5.8±0.6Or_0.3±0.0(n=3).

Classification: Achondrite (eucrite)

Specimens: 5.13 g and a polished section at CEREGE. Main mass with Pierre-Marie Pelé.

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Sainte Marie aux Mines mineral show
Date:	P 2015 Jun
Mass (g):	25.36
Pieces:	1
Class:	Eucrite
Weathering grade:	moderate
Ferrosilite (mol%):	46.3±6.2 (n=7)
Wollastonite (mol%):	9.3±5.8
Magnetic suscept.:	4.40
Classifier:	J. Gattacceca, L. Krämer Ruggiu, CEREGE
Type spec mass (g):	5.13
Type spec location:	CEREGE
Main mass:	Pierre-Marie Pelé
Comments:	Work name PM15E1; submitted by Lisa Kraemer Ruggiu

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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150

Find references in NASA ADS:
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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Maxime Denoncin

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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