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Northwest Africa 7912
Basic information Name: Northwest Africa 7912
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7912
Observed fall: No
Year found: 2013
Country: Morocco
Mass:help 56 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 522 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 27 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7912 (NWA 7912)

Morocco

Purchased: 2013

Classification: HED achondrite (Diogenite)

History: Purchased by Adam Bates from a Moroccan meteorite dealer, 2013.

Physical characteristics: Twelve pieces, the largest 12.8 g, brown weathered exterior. Saw cuts reveals light-brown crystalline texture.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows approximately 98% pyroxene plus accessory oxidized iron, low-Ni iron metal, chromite, and troilite.

Geochemistry: (C. Agee and L. Burkemper, UNM) Low-Ca pyroxene Fs30.7±0.7Wo1.6±0.0, Fe/Mn=27±1, n=6.

Classification: HED Achondrite (diogenite), equilibrated low-Ca pyroxene.

Specimens: 11.5 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013
Mass (g):56
Pieces:12
Class:Diogenite
Ferrosilite (mol%):30.7±0.7
Wollastonite (mol%):1.6±0.0
Classifier:C. Agee, UNM
Type spec mass (g):11.5
Type spec location:UNM
Main mass:Adam Bates
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. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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