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Northwest Africa 7982
Basic information Name: Northwest Africa 7982
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7982
Observed fall: No
Year found: 2013
Country: Morocco
Mass:help 615 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 576 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 12 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7982 (NWA 7982)

Morocco

Purchased: 2013

Classification: HED achondrite (Eucrite)

History: Purchased by Brahim Tahiri from a Moroccan hunter and sent to Sean Tutorow for classification, 2012.

Physical characteristics: Single stone, with partial, smooth black fusion crust, saw cut reveals light-gray color, plagioclase laths are prominent.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a pyroxene-plagioclase subophitic texture, pyroxenes have exsolution lamellae. Accessory silica, chromite, ilmenite and troilite.

Geochemistry: (C. Agee and N. Muttik, UNM)  Low Ca-pyroxene Fs60.4±1.9Wo4.0±1.8, Fe/Mn=33±1 n=10, pigeonite Fs52.2Wo13.2, Fe/Mn=32, n=1, augite Fs33.8±2.8Wo35.4±3.2, Fe/Mn=32±1, n=2, plagioclase Or0.7±0.1Ab12.2±0.9An87.1±0.8, n=3.

Classification: Achondrite (eucrite). Equilibrated basaltic eucrite.

Specimens: 21 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013
Mass (g):614.9
Pieces:1
Class:Eucrite
Classifier:C. Agee, UNM
Type spec mass (g):21
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G-418; 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. 102, MAPS 50, 1662, September 2015
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1973 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater)

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