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Northwest Africa 13134
Basic information Name: Northwest Africa 13134
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13134
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 15 g
Classification
  history:
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 289 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 5 Apr 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13134 (NWA 13134)

(Northwest Africa)

Find: 2012

Classification: Martian meteorite (Shergottite)

History: purchased in 2013 by M. Morgan in Morocco

Physical characteristics: Physical: several pieces, some with fresh fusion crust

Petrography: (Y. Liu, JPL) Medium-grained (up to ~3 mm in length) sub-ophitic assemblage of maskelynite and pyroxenes, with accessory ulvöspinel, ilmenite, merrillite, and apatite. Ulvöspinel contains Si-rich glass. K-rich mesostasis is abundant.

Geochemistry: Minerology: Pigeonite (Fs41±10Wo13±2, FeO/MnO=32±3, n=17), Augite (Fs26±8Wo33±2, FeO/MnO=30±3, n = 4), maskelynite (An49±3Or2±1, n =10). Oxygen isotopes (E. Young, UCLA): 2 acid-washed fragments analyzed by laser fluorination gave δ18O= 4.503, 4.636; δ17O= 2.699, 2.770; Δ17O= 0.318, 0.318.

Classification: Martian (basaltic shergottite)

Specimens: 3 g at UCLA. The remainder is held by M. Morgan at Mile High Meteorites.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:2012
Mass (g):15
Pieces:2
Class:Martian (shergottite)
Shock stage:high
Weathering grade:moderate
Ferrosilite (mol%):30-56, 58-21
Wollastonite (mol%):11-15, 17-36
Classifier:Y. Liu, JPL
Type spec mass (g):3
Type spec location:UCLA
Main mass:M. Morgan, Mile High Meteorites
Comments:Submitted by Yang Liu
Plots: O isotopes:  
Institutions
   and collections		 UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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