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Northwest Africa 13106
Basic information Name: Northwest Africa 13106
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13106
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 320 g
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 284 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 9 Feb 2020
Writeup from MB 109:

Northwest Africa 13106 (NWA 13106)

(Northwest Africa)

Purchased: 2019 May

Classification: Martian meteorite (Shergottite)

History: Purchased in Agadir, Morocco, by Aziz Habibi in May 2019.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Intersertal texture with a prominent lattice preferred orientation of maskelynite laths and prismatic clinopyroxene (strongly compositionally zoned). Accessory phases include merrillite, silica polymorph, pyrrhotite, ilmenite (with hematite exsolution lamellae), titanomagnetite (with ulvöspinel exsolution lamellae), baddeleyite, fayalite (in melt inclusions) and anorthoclase (in mesostasis).

Geochemistry: Pigeonite cores (Fs33.0-33.4Wo15.0-14.2, FeO/MnO = 28-29, N = 2), subcalcic augite cores (Fs24.7-29.1Wo24.1-30.0, FeO/MnO = 27-29, N = 3), ferropigeonite rims (Fs70.2-78.3Wo13.4-19.9, FeO/MnO = 39-40, N = 4), subcalcic ferroan augite rim (Fs58.7Wo25.3, FeO/MnO = 38), maskelynite (An55.2-56.1Or1.1-1.7, N = 3), ferropigeonite in mesostasis (Fs84.3Wo10.4, FeO/MnO = 41), anorthoclase in mesostasis (Ab41.4An35.3Or23.3).

Classification: Shergottite (intersertal).

Specimens: 20.5g including one polished thin section at UWB; remainder with Mr. A. Habibi.

Data from:
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2019 May
Mass (g):320
Class:Martian (shergottite)
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):33.0-33.4; 24.7-29.1; 70.2-78.3
Wollastonite (mol%):15.0-14.2; 24.1-30.0; 13.4-19.9
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.5
Type spec location:UWB
Main mass:A. Habibi
Comments:Work name AH 170B; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
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     This is 1 of 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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