Meteoritical Bulletin: Entry for Northwest Africa 8483

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Northwest Africa 8483

Basic information

Name: Northwest Africa 8483
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8483
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 61.5 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	CV3
Recommended:			CV3 [explanation]

This is 1 of 565 approved meteorites (plus 1 unapproved name) classified as CV3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 26 Jul 2014

Writeup

Writeup from MB 103:

Northwest Africa 8483 (NWA 8483)

(Northwest Africa)

Purchased: 2013 Apr 30

Classification: Carbonaceous chondrite (CV3)

History: Purchased in Erfoud, April 2013. Found in Western Sahara.

Physical characteristics: Three crusted stones. Cut surface reveals abundant brownish chondrules up to 3 mm, and CAI up to 1 mm set in a dark matrix.

Petrography: (C. Cournède and J. Gattacceca, CEREGE) Chondrules set in a fine-grained matrix. Chondrule:matrix ratio is about 60%:40%. Chondrule mean apparent size 0.78±0.58 mm (N=34).

Geochemistry: Olivine Fa_4.8±4.0(PMD=70%, n=18, range 0.5-14.1). Orthopyroxene Fs_1.2±0.2(PMD=13%, n=6, range Fs_1.0-2.3). Magnetic susceptibility log χ = 4.13 (χ in 10^-9 m³/kg).

Classification: Carbonaceous chondrite (CV3). Strong weathering.

Specimens: 12.4 g and a polished section in CEREGE. Main mass with P. Thomas

Data from:
  MB103
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2013 Apr 30
Mass (g):	61.5
Pieces:	3
Class:	CV3
Weathering grade:	high
Fayalite (mol%):	4.8±4.0 (PMD=70%, N=18)
Ferrosilite (mol%):	1.2±0.2 (PMD=13%, N=6)
Wollastonite (mol%):	1.8±1.1
Magnetic suscept.:	4.13
Classifier:	C. Cournède and J. Gattacceca, CEREGE
Type spec mass (g):	12.4
Type spec location:	CEREGE
Main mass:	P. Thomas
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 29 Oct 2018)

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 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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