Meteoritical Bulletin: Entry for Northwest Africa 7510

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Northwest Africa 7510

Basic information

Name: Northwest Africa 7510
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7510
Observed fall: No
Year found: 2012
Country: Morocco
Mass: 196 g

Classification
history:

Meteoritical Bulletin:	MB 101	(2012)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 8 Nov 2012

Writeup

help

Writeup from MB 101:

Northwest Africa 7510 (NWA 7510)

Morocco

Purchased: Aug 2012

Classification: HED achondrite (Howardite)

History: Purchased by Adam Bates in August 2012 from a Moroccan meteorite dealer.

Physical characteristics: Single stone, dark brown, lightly weathered, and fusion-crusted. Saw cut reveals fresh, fine-grained brecciated texture, scattered white and dark clasts set in a light-gray groundmass.

Petrography: C. Agee, UNM) Microprobe examination of a polished mount shows two distinct lithologies: 1) diogenite lithology with zoned pyroxene phenocrysts up to 1 mm, and 2) finer-grained cumulate eucrite lithology of ~50% pyroxene and ~40% plagioclase, most pyroxenes with exsolution lamellae. Accessory silica, ilmenite, chromite, troilite, and low-Ni iron metal.

Geochemistry: (C. Agee and M. Spilde, UNM) Diogenite low Ca-pyroxene cores Fs_23.7±0.9Wo_2.5±0.2, Fe/Mn=33±2, n=2; cumulate eucrite low-Ca pyroxene Fs_46.1±4.6Wo_5.0±3.0, Fe/Mn=32±2, n=33; cumulate eucrite high-Ca pyroxene Fs_27.2±7.7Wo_35.2±8.6, Fe/Mn=29±2, n=5; plagioclase Or_0.3Ab_6.4An_93.3.

Classification: Achondrite (howardite), mix of diogenite and cumulate eucrite lithologies.

Specimens: 21.02 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P Aug 2012
Mass (g):	196
Pieces:	1
Class:	Howardite
Ferrosilite (mol%):	23.7±0.9, 46.1±4.6, 27.2±7.7
Wollastonite (mol%):	2.5±0.2, 5.0±3.0, 35.2±8.6
Classifier:	C. Agee, UNM
Type spec mass (g):	21.02
Type spec location:	UNM
Main mass:	Adam Bates
Comments:	Submitted by C. Agee

Institutions
and collections

UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Zsolt Kereszty

Geography:

Morocco

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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