Meteoritical Bulletin: Entry for Northwest Africa 8482

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Northwest Africa 8482

Basic information

Name: Northwest Africa 8482
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8482
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 23.2 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 408 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 26 Jul 2014

Writeup

help

Writeup from MB 103:

Northwest Africa 8482 (NWA 8482)

(Northwest Africa)

Purchased: 2013 June 7

Classification: HED achondrite (Eucrite, polymict)

History: Purchased in Erfoud, June 2013

Physical characteristics: A single crusted full stone. Cut surface reveals light gray interior with lighter mm-sized clasts.

Petrography: (C. Cournède and J. Gattacceca, CEREGE) Basalt with sub-ophitic texture. Mm-sized clasts with cumulate texture. Main minerals are plagioclase (~250 μm) and clinopyroxenes (~400 μm). Accessory silica (~90 μm), chromite (~100 μm). Rare metal.

Geochemistry: Basaltic host orthopyroxene Fs_61.3±1.1Wo_1.9±0.2(n=10). Cumulate clasts Fs_42.3±5.5Wo_2.4±0.7(n=5). Augite exsolutions Fs_25.3±4.4Wo_42.7±1.5(n=4). Plagioclase An_88.3Ab_11.2Or_0.5(n=2). Magnetic susceptibility log χ = 3.32 (χ in 10^-9 m³/kg).

Classification: Eucrite polymict. Minimal weathering

Specimens: 5.2 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 June 7
Mass (g):	23.2
Pieces:	1
Class:	Eucrite-pmict
Weathering grade:	low
Ferrosilite (mol%):	61.3±1.1 (n=10), 42.3±5.5 (n=5)
Wollastonite (mol%):	1.9±0.2, 2.4±0.7
Magnetic suscept.:	3.32
Classifier:	C. Cournède and J. Gattacceca, CEREGE
Type spec mass (g):	5.2
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 10 Jun 2023)

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)

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Revision
history:

This lists important revisions made to data for this record.

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