Meteoritical Bulletin: Entry for Northwest Africa 12586

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Northwest Africa 12586

Basic information

Name: Northwest Africa 12586
This is an OFFICIAL meteorite name.
Abbreviation: NWA 12586
Observed fall: No
Year found: 2017
Country: Morocco
Mass: 427 g

Classification
history:

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

This is 1 of 353 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 7 May 2019

Writeup

Writeup from MB 108:

Northwest Africa 12586 (NWA 12586)

Morocco

Purchased: 2017 Dec

Classification: Ordinary chondrite (LL3)

Physical characteristics: Crusted stone. Cut surface reveals dark interior

Petrography: (J. Gattacceca, CEREGE) Chondrite with packed well-delinetaed chondrules. Opaques are metal and troilite. Contains a 3 × 3 mm clast made of matrix exclusively.

Geochemistry: Olivine Fa_21.9±7.0, PMD 28%, Cr₂O₃ 0.053±0.069 wt% (n=12). Low-Ca pyroxene Fs_15.4±8.8Wo_1.3±1.0(n=9).

Classification: Ordinary chondrite (LL3). LL group based on magnetic susceptibility.

Data from:
  MB108
  Table 0
  Line 0:

Place of purchase:	Munich
Date:	P 2017 Dec
Mass (g):	426.6
Pieces:	2
Class:	LL3
Weathering grade:	W1
Fayalite (mol%):	21.9±7.0 (n=12)
Ferrosilite (mol%):	15.4±8.8 (n=9)
Wollastonite (mol%):	1.3±1.0
Magnetic suscept.:	4.31
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	23.4
Type spec location:	CEREGE
Main mass:	Lucian Cojocaru
Comments:	work name LC14; submitted by Jérôme 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 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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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 1548 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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