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Northwest Africa 7330
Basic information Name: Northwest Africa 7330
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7330
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 111.1 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Eucrite-cm
Recommended:  Eucrite-cm    [explanation]

This is 1 of 45 approved meteorites classified as Eucrite-cm.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 23 Jul 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7330 (NWA 7330)

Morocco

Purchased: 2012 Mar

Classification: HED achondrite (Eucrite, cumulate)

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

Physical characteristics: Two individual stones, dark weathered fusion crust, saw cut reveals fresh, fine-grained texture, with small (<1 mm) phenocrysts set in a light tan-colored groundmass.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a pyroxene-plagioclase protogranular texture, some pyroxenes >1 mm. Accessory silica, chromite, troilite, and low-Ni iron metal, some of the metal is oxidized.

Geochemistry: (C. Agee and L. Burkemper, UNM) EMPA. Low Ca-pyroxene Fs39.3±2.4Wo3.7±0.2, Fe/Mn=31±1, n=34; augite Fs20.7±0.3Wo41.3±0.3, Fe/Mn=26±1, n=6; plagioclase Or0.4±0.0Ab7.6±1.0An92.0±1.0, n=2.

Classification: Achondrite, equilibrated cumulate eucrite. Slightly weathered.

Specimens: 21.1 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):111.07
Pieces:2
Class:Eucrite-cm
Ferrosilite (mol%):39.3±2.4, 20.7±0.3
Wollastonite (mol%):3.7±0.2, 41.3±0.3
Classifier:C. Agee, UNM
Type spec mass (g):21.1
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:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1417 approved meteorites from Morocco (plus 15 unapproved names) (plus 1 impact crater)

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