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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:help 196 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 372 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 8 Nov 2012
Writeuphelp
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 Fs23.7±0.9Wo2.5±0.2, Fe/Mn=33±2, n=2; cumulate eucrite low-Ca pyroxene Fs46.1±4.6Wo5.0±3.0, Fe/Mn=32±2, n=33; cumulate eucrite high-Ca pyroxene Fs27.2±7.7Wo35.2±8.6, Fe/Mn=29±2, n=5; plagioclase Or0.3Ab6.4An93.3.

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
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Zsolt Kereszty      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1390 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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