Meteoritical Bulletin: Entry for Northwest Africa 12329

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Northwest Africa 12329

Basic information

Name: Northwest Africa 12329
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12329
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 99.5 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	CO3
Recommended:			CO3 [explanation]

This is 1 of 645 approved meteorites (plus 1 unapproved name) classified as CO3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Approved 12 Apr 2019

Writeup

Writeup from MB 108:

Northwest Africa 12329 (NWA 12329)

(Northwest Africa)

Purchased: May 2015

Classification: Carbonaceous chondrite (CO3)

History: Purchased in Erfoud by Pierre-Marie Pelé

Physical characteristics: Brown stone. Cut face reveals brownish interior with small chondrules

Petrography: Chondrules with average size 170 μm (n=19) set in fine grained matrix (47 vol%, from point counting n=143). Abundant metal.

Geochemistry: Olivine Fa_15.4±16.4, PMD=101%, range Fa_0.4-46.3(n=12), Cr₂O₃ in ferroan olivine is 0.20±0.09 wt% (n=10). Low-ca pyroxene Fs_3.0±1.4Wo_1.0±0.1, range Fs_1.6-4.3Wo_0.9-1.1(n=2). High-Ca pyroxene Fs_1.22Wo_52.4(n=1)

Classification: Carbonaceous chondrite (CO3). Moderate weathering

Specimens: 21.5 g and a polished section at CEREGE. Main mass with Pierre-Marie Pelé

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P May 2015
Mass (g):	99.49
Pieces:	1
Class:	CO3
Weathering grade:	weak
Fayalite (mol%):	15.4±16.4 (n=12)
Ferrosilite (mol%):	2.4±1.4 (n=2)
Wollastonite (mol%):	1.0±0.1
Magnetic suscept.:	4.48
Classifier:	L.K. Ruggiu and J. Gattacceca, CEREGE
Type spec mass (g):	21.5
Type spec location:	CEREGE
Main mass:	Pierre-Marie Pelé
Comments:	Work name COPM01; submitted by Lisa Krämer 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 10 Jun 2023)

Catalogs:

References:

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

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Geography:

Coordinates:

Unknown.

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

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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