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Northwest Africa 13110
Basic information Name: Northwest Africa 13110
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13110
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 46.9 g
Recommended:  Diogenite-pm    [explanation]

This is 1 of 49 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 9 Feb 2020
Writeup from MB 109:

Northwest Africa 13110 (NWA 13110)

(Northwest Africa)

Purchased: 2019 Aug

Classification: HED achondrite (Diogenite, polymict)

History: Purchased from a dealer in Zagora, Morocco, in August 2019 by Juan Avil├ęs Poblador on behalf of UAlic.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed predominantly of angular mineral grains derived from several different diogenite lithologies together with ~2 vol.% of lithic eucrite clasts (exhibiting fine-intersertal, granulitic, vitrophyric and microgabbroic textures). Minerals are diogenitic orthopyroxene (of several distinct compositions), calcic plagioclase, olivine (one grain with an orthopyroxene rim), exsolved pigeonite, ferroan orthopyroxenes, silica polymorph, kamacite, Ni-free Fe metal, aluminous low-Ti chromite, ilmenite and troilite.

Geochemistry: Diogenitic orthopyroxenes (Fs18.4Wo0.8; Fs22.9Wo2.1; Fs24.4-24.6Fs1.6-2.6; FeO/MnO = 27-31; N = 4), olivine (Fa51.7-56.2, FeO/MnO = 47-51, N = 3), orthopyroxene rim on olivine (Fs41.5Wo1.8, FeO/MnO = 32), ferroan orthopyroxenes (Fs59.3Wo4.1; Fs47.5Wo2.1; FeO/MnO = 25-31; N = 2), ferroan pigeonite host (Fs50.1Wo6.5, FeO/MnO = 30), augite exsolution lamellae (Fs18.9Wo43.2; Fs26.4-28.2Wo37.9-41.4; FeO/MnO = 24-31; N = 3), plagioclase (An83.8-90.9Or0.7-0.3, N = 3).

Classification: Diogenite (polymict breccia).

Specimens: 9.8 g including one polished thin section at UWB; remainder in the collection of UAlic.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2019 Aug
Mass (g):46.9
Shock stage:low
Weathering grade:low
Fayalite (mol%):51.7-56.2
Ferrosilite (mol%):18.4-24.6; 59.3; 47.5; 28.2; 18.9
Wollastonite (mol%):0.8-2.6; 4.1; 2.1;41.4; 43.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):9.8
Type spec location:UWB
Main mass:University of Alicante
Comments:Work name JAP19-3; 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)
UAlic: Earth Sciences Department University of Alicante San Vicente del Raspeig, Spain (institutional address; updated 9 Feb 2020)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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