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Northwest Africa 7332
Basic information Name: Northwest Africa 7332
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7332
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 59.3 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  CV3
Recommended:  CV3    [explanation]

This is 1 of 536 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 26 Jul 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7332 (NWA 7332)

Morocco

Purchased: May 2012

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Sean Tuturow in Morocco, May 2012.

Physical characteristics: Single stone, black, smooth fusion-crusted exterior, saw cut reveals numerous oval-shaped chondrules up to 3 mm, some reddish in color, set in a black matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous irregularly to oval-shaped POP chondrules (500 μm to 3 mm). At least three populations of olivine and pyroxene, many pyroxenes with high Al-content. Matrix contains olivine, pyroxene, finely dispersed sulfide, spinel, and a few metal grains.

Geochemistry: (C. Agee and N. Wilson, UNM) Type I chondrules: olivine Fa3.9±2.2, Fe/Mn=60±33, n=15; low-Ca pyroxene Fs1.6±0.6Wo1.6±1.2, Fe/Mn=18±12, n=9; aluminous diopside Fs2.6±2.8Wo40.4±1.2, Al2O3=3.96±2.06 wt%, n=15. Type II chondrules: olivine Fa18.1±10.4, Fe/Mn=123±35, n=4; aluminous augite Fs21.2±8.1Wo29.6±3.8, Al2O3=6.96±3.84 wt%, n=3. Matrix: olivine Fa53.5±4.3, Fe/Mn=131±8, n=9; aluminous pyroxene Fs52.1±9.0Wo4.2±6.5, Fe/Mn=128±22, Al2O3=2.87±2.04 wt%, n=18; hercynite-rich spinel; and taenite Ni0.60Fe0.40.

Classification: Carbonaceous chondrite (CV3), weathering grade W2.

Specimens: 12.95 g including a probe mount on deposit at UNM, Sean Tuturow holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Date:P May 2012
Mass (g):59.30
Pieces:1
Class:CV3
Weathering grade:W2
Fayalite (mol%):3.9±2.2 (n=15), 18.1±10.4 (n=4)
Ferrosilite (mol%):1.6±0.6, 2.6±2.8, 21.2±8.1, 52.1±9.0
Wollastonite (mol%):1.6±1.2, 40.4±1.2, 29.6±3.8, 4.2±6.5
Classifier:C. Agee, UNM
Type spec mass (g):12.95
Type spec location:UNM
Main mass:Sean Tuturow
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 1488 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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