Meteoritical Bulletin: Entry for Northwest Africa 11812

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Northwest Africa 11812

Basic information

Name: Northwest Africa 11812
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11812
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass: 144.6 g

Classification
history:

Meteoritical Bulletin:	MB 107	(2018)	LL3
Recommended:			LL3 [explanation]

This is 1 of 507 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 11 May 2018

Writeup

Writeup from MB 107:

Northwest Africa 11812 (NWA 11812)

(Northwest Africa)

Purchased: 2017

Classification: Ordinary chondrite (LL3)

Physical characteristics: Greyish stone. Cut surface reveals a dark-gray interior with closely packed well-defined chondrules.

Petrography: (J. Gattacceca, H. Pourkhorsandi, CEREGE) Packed mm-sized chondrules.

Geochemistry: Olivine Fa_23.5±6.7, range 11.9-30.6, PMD 23% (N=5). Orthopyroxene Fs_17.5±5.3Wo_1.1±1.0, Fs PMD 25% (N=5).

Classification: LL3. LL than L classification from magnetic susceptibility.

Specimens: Type specimen at CEREGE. Main mass with Fabien Kuntz.

Data from:
  MB107
  Table 0
  Line 0:

Place of purchase:	Ensisheim
Date:	P 2017
Mass (g):	144.6
Pieces:	1
Class:	LL3
Weathering grade:	W3
Fayalite (mol%):	23.5±6.7 (N=5)
Ferrosilite (mol%):	17.5±5.3 (N=5)
Wollastonite (mol%):	1.1±1.0
Magnetic suscept.:	3.94
Classifier:	J. Gattacceca, H. Pourkhorsandi, CEREGE
Type spec mass (g):	20.53
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K360; 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. 107, MAPS 55, 460-462

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)
Mike Markowitz

Geography:

Coordinates:

Unknown.

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

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