Meteoritical Bulletin: Entry for Northwest Africa 13718

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Northwest Africa 13718

Basic information

Name: Northwest Africa 13718
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13718
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 58.8 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	LL6
Recommended:			LL6 [explanation]

This is 1 of 2954 approved meteorites (plus 2 unapproved names) classified as LL6. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 13 Feb 2021

Writeup

Writeup from MB 110:

Northwest Africa 13718 (NWA 13718)

(Northwest Africa)

Purchased: 2020 Oct

Classification: Ordinary chondrite (LL6)

Physical characteristics: A single stone with 80% fusion crust

Petrography: (J. Gattacceca, CEREGE) Recrystallized rock with granulitic texture (triple junctions). Grain size 100 µm. Main minerals are olivine, orthopyroxene, and Ca-pyroxene. Opaque minerals are troilite (100 µm) and less abundant metal (20 µm), chromite to 200 µm. Shock veins.

Geochemistry: Plagioclase An_10.2Ab_85.1Or_4.7(n=1). Chromite Cr# = 0.87 (n=2). Metal Fe 29.8 wt%, Ni 68.8 wt%, Co 1.36 wt% (n=4).

Classification: Ordinary chondrite (LL6). Unusual metal composition with only FeNi₂.

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

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Zagora, Morocco
Date:	P 2020 Oct
Mass (g):	58.8
Pieces:	1
Class:	LL6
Fayalite (mol%):	32.3 (n=2)
Ferrosilite (mol%):	26.3 (n=2)
Wollastonite (mol%):	1.8
Magnetic suscept.:	3.56
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	12.24
Type spec location:	CEREGE
Main mass:	Kuntz
Finder:	anonymous
Comments:	work name K530; 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 10 Jun 2023)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Coordinates:

Unknown.

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

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