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Northwest Africa 7920
Basic information Name: Northwest Africa 7920
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7920
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 4.51 kg
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Pallasite, PMG
Recommended:  Pallasite, PMG    [explanation]

This is 1 of 43 approved meteorites (plus 1 unapproved name) classified as Pallasite, PMG.   [show all]
Search for other: Main group pallasites, Metal-rich meteorites, and Pallasites
Comments: Approved 27 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7920 (NWA 7920)

Morocco

Purchased: 2012

Classification: Pallasite (Main group)

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

Physical characteristics: Dark brown irregular exterior, saw cut reveals rounded olivine grains, many 3-5 mm, also up to cm-size, set in a brown oxidized matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows olivine surrounded and penetrated by a matrix of iron oxides or hydroxides. No primary Fe-Ni metal detected.

Geochemistry: (C. Agee and L. Burkemper, UNM) Olivine Fa13.2±0.9, Fe/Mn=45±3, n=5.

Classification: Pallasite, main group.

Specimens: 26.1 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 2012
Mass (g):4505
Pieces:1
Class:Pallasite, PMG
Fayalite (mol%):13.2±0.9
Classifier:C. Agee, UNM
Type spec mass (g):26.1
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G-381; 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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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Aeroliths Collection Theodossiou         
Alpha Tauri   
Grégory Blaimont   
John Tanner   
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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