Meteoritical Bulletin: Entry for Northwest Africa 8433

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Northwest Africa 8433

Basic information

Name: Northwest Africa 8433
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8433
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass: 598 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	LL7
Recommended:			LL7 [explanation]

This is 1 of 100 approved meteorites classified as LL7. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 6 Jun 2014

Writeup

Writeup from MB 103:

Northwest Africa 8433 (NWA 8433)

(Northwest Africa)

Purchased: 2002

Classification: Ordinary chondrite (LL7)

History: Purchased in Tucson in 2002

Physical characteristics: One partially crusted stone.

Petrography: (J. Gattacceca, CEREGE): Breccia with shock-darkened clasts up to 5 mm and mm-thick shock veins. No chondrule visible. Recrystallized texture with triple junctions. Most plagioclase are >100 μm. Minerals are olivine, pyroxene, plagioclase, troilite, chromite, Ca-phosphate, metal.

Geochemistry: Olivine Fa_31.4±0.1, orthopyroxene Fs_26.4±0.2Wo_2.3±0.3, plagioclase An₁₁Ab₈₂Or_7.Magnetic susceptibility log χ = 3.82 (χ in 10^-9 m³/kg).

Classification: Ordinary chondrite (LL7), breccia. Weathering grade W1

Specimens: 22 g in CEREGE, main mass with Labenne

Data from:
  MB103
  Table 0
  Line 0:

Place of purchase:	Tucson
Date:	P 2002
Mass (g):	598
Pieces:	1
Class:	LL7
Weathering grade:	W1
Fayalite (mol%):	31.5±0.1
Ferrosilite (mol%):	26.4±0.2
Wollastonite (mol%):	2.3±0.3
Magnetic suscept.:	3.82
Classifier:	J. Gattacceca, M. Aboulahris, CEREGE
Type spec mass (g):	22
Type spec location:	CEREGE
Main mass:	Luc Labenne
Comments:	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)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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