Meteoritical Bulletin: Entry for Northwest Africa 8627

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Northwest Africa 8627

Basic information

Name: Northwest Africa 8627
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8627
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 5.8 g

Classification
history:

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

This is 1 of 237 approved meteorites classified as Eucrite-br. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 25 Nov 2014

Writeup

Writeup from MB 103:

Northwest Africa 8627 (NWA 8627)

(Northwest Africa)

Purchased: 2014 May 5

Classification: HED achondrite (Eucrite, brecciated)

History: Purchased in Erfoud May 5, 2014.

Physical characteristics: A single small stone partially covered with with a thin translucent fusion crust.

Petrography: Igneous brecciated and partial melt rock. Main minerals are exsolved pyroxene, plagioclase. Accessory chromite, Ca-phosphate, silica, troilite. Rare metal.

Geochemistry: Pyroxenes: pigeonite Fs_49.5±13.3Wo_6.2±4.4(Fs_44.1-58.2Wo_7.3-17.8, N=3), augite exsolution Fs_31.4Wo_39.5(N=1), FeO/MnO=31.9±2.8 (N=4). Plagioclase An_91.4±0.8Or_0.1±0.1(N=5). Chromite Cr#=0.80 (N=2). Magnetic susceptibility log χ = 3.07 (χ in 10^-9 m³/kg).

Classification: Eucrite (brecciated)

Specimens: 1.2 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 2014 May 5
Mass (g):	5.8
Pieces:	1
Class:	Eucrite-br
Ferrosilite (mol%):	49.5±6.2 (N=3)
Wollastonite (mol%):	13.3±4.4
Magnetic suscept.:	3.07
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	1.24
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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