Meteoritical Bulletin: Entry for Northwest Africa 12464

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Northwest Africa 12464

Basic information

Name: Northwest Africa 12464
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12464
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass: 597 g

Classification
history:

Meteoritical Bulletin:	MB 108	(2020)	LL3.15
Recommended:			LL3.15 [explanation]

This is 1 of 23 approved meteorites classified as LL3.15. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 22 Feb 2019

Writeup

Writeup from MB 108:

Northwest Africa 12464 (NWA 12464)

(Northwest Africa)

Purchased: 2018 March

Classification: Ordinary chondrite (LL3.15)

Petrography: Chondrite with packed, well-delineated chondrules, with average apparent diameter 690±360 μm (n=40). Main opaques are metal, troilite, and their terrestrial weathering products. Chondrule mesostasis is devitrified. Zoned olivine.

Geochemistry: Olivine Fa_12.8±9.1, Fa PMD 56%, range Fa_0.4-32.6(n=16). Cr₂O₃ in ferroan olivine 0.20±0.18 wt% (n=12). Orthopyroxene Fs_8.2±7.4Wo_1.6±1.1(n=7). Magnetic susceptibility log χ (× 10^-9 m³/kg) = 3.95.

Classification: LL3.15. LL group from magnetic susceptibility. Subtype from Cr₂O₃ content of ferroan olivine.

Specimens: Type specimen at CEREGE

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Zagora, Morocco
Date:	P 2018 March
Mass (g):	597
Pieces:	2
Class:	LL3.15
Weathering grade:	W3
Fayalite (mol%):	12.8±9.1 (n=16)
Ferrosilite (mol%):	8.2±7.4 (n=7)
Wollastonite (mol%):	1.6±1.1
Magnetic suscept.:	3.95
Classifier:	J. Gattacceca, L. Krämer Ruggiu, CEREGE
Type spec mass (g):	24.53
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K388; submitted by J. 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

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Photos:

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

Geography:

Coordinates:

Unknown.

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

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