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Northwest Africa 8161
Basic information Name: Northwest Africa 8161
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8161
Observed fall: No
Year found: 2013
Country: Morocco
Mass:help 216 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Martian (shergottite)
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 298 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 23 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 8161 (NWA 8161)

Morocco

Purchased: 2013

Classification: Martian meteorite (Shergottite)

History: Purchased by Aziz Habibi in Morocco, 2013.

Physical characteristics: Several fragments that fit together to form a nearly complete stone. Shiny black crust, broken surface reveals polycrystalline texture with millimeter-sized grains

Petrography: (C. Agee, UNM) Microprobe examination of a polished epoxy mount shows ~40% olivine, ~40% pyroxene, ~10% maskelynite, ubiquitous Cr-Ti-Fe oxides; sulfide present. Pyroxenes and olivines are heavily shocked, grain size ranges from 200-2000 μm.

Geochemistry: (C. Agee and N. Muttik, UNM) EMPA. Olivine Fa40.1±3.7, Fe/Mn=52±1, n=12; pigeonite Fs28.6±2.7Wo9.7±2.7, Fe/Mn=30±1, n=23; augite Fs19.4±1.9Wo32.0±4.4, Fe/Mn=27±1, n=9; maskelynite Or2.3±0.4Ab47.2±3.0An50.5±3.2, n=8.

Classification: Martian meteorite (shergottite, poikilitic)

Specimens: 20.5 g including microprobe mount on deposit UNM, Aziz Habibi holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013
Mass (g):216
Pieces:Several
Class:Martian (shergottite)
Classifier:C. Agee, UNM
Type spec mass (g):20.5
Type spec location:UNM
Main mass:Aziz Habibi
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 1991 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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