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Northwest Africa 11017
Basic information Name: Northwest Africa 11017
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11017
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 268 g
Meteoritical Bulletin:  MB 105  (2016)  Diogenite-pm
Recommended:  Diogenite-pm    [explanation]

This is 1 of 50 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 17 Dec 2016
Writeup from MB 105:

Northwest Africa 11017 (NWA 11017)

(Northwest Africa)

Purchased: 2016 Jun

Classification: HED achondrite (Diogenite, polymict)

History: Purchased by Fabien Kuntz in June 2016 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of >90 vol.% angular grains of diogenitic orthopyroxene (of several different compositions), sparse grains of olivine, augite, chromite and calcic plagioclase, and rare lithic clasts in a finer-grained matrix of the same minerals plus troilite and stained Ni-free metal. Lithic clasts include sparse polycrystalline diogenite, quench-textured eucrite (containing elongate pigeonite crystals within glassy mesostasis) and a fine grained breccia lithology. Minor secondary barite occurs in the matrix and some calcite veinlets are present.

Geochemistry: Orthopyroxene (Fs13.8Wo4.2; Fs17.9Wo0.7; Fs 25.8Wo2.5; FeO/MnO = 25-30), augite (Fs16.4-18.7Wo42.6-42.3, FeO/MnO = 23-25), pigeonite in quenched eucrite clast (Fs41.7Wo6.7, FeO/MnO = 31). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.10.

Classification: Diogenite (polymict breccia). The wide range of Fe/Mg in diogenitic orthopyroxene is an unusual feature.

Specimens: 23.69 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2016 Jun
Mass (g):268
Shock stage:low
Weathering grade:low
Fayalite (mol%):30.3-30.7
Ferrosilite (mol%):13.8-25.8; 41.7; 16.4-18.7
Wollastonite (mol%):0.7-4.2; 6.7; 42.6-42.3
Magnetic suscept.:3.10
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):23.69
Type spec location:PSF
Main mass:F. Kuntz
Comments:K304; submitted by A. Irving
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mike Markowitz   
Ryan Upchurch   

     This is 1 of 8025 approved meteorites from (Northwest Africa) (plus 1951 unapproved names)

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