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Northwest Africa 10153
Basic information Name: Northwest Africa 10153
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10153
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 119 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Martian (nakhlite)
Recommended:  Martian (nakhlite)    [explanation]

This is 1 of 32 approved meteorites classified as Martian (nakhlite).   [show all]
Search for other: Martian meteorites
Comments: Approved 27 May 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10153 (NWA 10153)

Northwest Africa

Purchased: 2014 Dec

Classification: Martian meteorite (Nakhlite)

History: Purchased by Darryl Pitt in December 2014 from a dealer in Erfoud, Morocco.

Physical characteristics: A single (119 g) somewhat friable stone lacking fusion crust. The interior appears granular and overall gray green in color, but with prominent beige to reddish brown interstitial components.

Petrography: (A. Irving and S. Kuehner, UWS) Cumulate texture. Large (up to 2.0 mm long) prismatic, compositionally zoned augite grains and subordinate, larger (2.2-3.0 mm), equant grains of olivine (with distinct ferroan rims) are the predominant constituents, along with interstitial birefringent plagioclase laths, chlorapatite, ulvöspinel, exsolved Fe-Ti oxide, plus an optically and compositionally heterogeneous iron silicate phase (red-brown in thin section) resembling chlorophaeite.

Geochemistry: Olivine (cores Fa61.3-63.7, rims Fa76.2-81.8, FeO/MnO = 41-48, N = 4), augite (Fs23.1-43.5Wo39.6-41.1, FeO/MnO = 31-38, N = 8), plagioclase (An23.4-25.4Or5.3-3.4, N = 3), chlorophaeite-like phase (average of 5 analyses in wt.%): SiO2 43.3, Al2O3 1.6, Fe2O3 36.0, MgO 2.0, CaO 1.0, Na2O 0.4, K2O 0.4. Oxygen isotopes (K. Ziegler, UNM): Analyses of three acid-washed subsamples by laser fluorination gave, respectively, δ17O 2.677, 2.870, 2.591; δ18O 4.579, 4.963, 4.446; Δ17O 0.259, 0.250, 0.244 per mil.

Classification: Martian meteorite (nakhlite).

Specimens: 22.3 g including one polished thin section and one polished thick section at UWB. The remaining material is held by DPitt.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2014 Dec
Mass (g):119
Pieces:1
Class:Martian (nakhlite)
Shock stage:low
Weathering grade:low
Fayalite (mol%):61.3-81.8
Ferrosilite (mol%):23.1-43.5
Wollastonite (mol%):39.6-41.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):22.3
Type spec location:UWB
Main mass:DPitt
Comments:SH 65; submitted by A. Irving
Plots: O isotopes:  
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)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Denis gourgues      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
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Revision
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  This lists important revisions made to data for this record.

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