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Northwest Africa 7329
Basic information Name: Northwest Africa 7329
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7329
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 145.8 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 23 Jul 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7329 (NWA 7329)

Morocco

Purchased: 2012 Mar

Classification: HED achondrite (Howardite)

History: Purchased by Sean Tutorow in Morocco, March 2012.

Physical characteristics: Single stone, dark shiny fusion crust, very fresh appearance, saw cut reveals brecciated texture, dark and light clasts up to several millimeters set in a bluish-gray groundmass.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a breccia with 74% cumulate eucrite pyroxenes, 26% diogenite orthopyroxenes, and a minor amount main group eucrite clasts. Accessory silica, chromite, kamacite, and taenite. No troilite or ilmenite detected. Quench melt clasts observed.

Geochemistry: (C. Agee and L. Burkemper, UNM) EMPA. Cumulate eucrite low-Ca pyroxene Fs38.2±3.0Wo2.8±1.3, Fe/Mn=33±2, n=23; high-Ca pyroxene Fs28.1±10.1Wo27.0±16.3, Fe/Mn=28±3, n=3; diogenite orthopyroxene Fs28.7±3.9Wo2.1±0.8, Fe/Mn=33±3, n=9; plagioclase Or0.5±0.1Ab7.7±1.7An91.8±1.8, n=4; single plagioclase clast: Or2.8Ab22.2An75.1.

Classification: Achondrite (howardite). Minimal weathering.

Specimens: 20.4 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2012 Mar
Mass (g):145.77
Pieces:1
Class:Howardite
Ferrosilite (mol%):38.2±3.0, 28.1±10.1, 28.7±3.9
Wollastonite (mol%):2.8±1.3, 27.0±16.3, 2.1±0.8
Classifier:C. Agee, UNM
Type spec mass (g):20.4
Type spec location:UNM
Main mass:Sean Tutorow
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:
Find references in Google Scholar:
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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