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Northwest Africa 11960
Basic information Name: Northwest Africa 11960
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11960
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 1265 g
Meteoritical Bulletin:  MB 107  (2018)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 91 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 15 Sep 2018
Writeup from MB 107:

Northwest Africa 11960 (NWA 11960)

(Northwest Africa)

Purchased: 2018 Apr

Classification: Primitive achondrite (Lodranite)

History: Purportedly found near Smara, Morocco. Purchased from a nomad by a Moroccan dealer in March 2018 and then sold to Ben Hoefnagels in April 2018.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively coarse grained (1-2.5 mm) protogranular aggregate of olvine and clinopyroxene with accessory orthopyroxene, chromite, pyrrhotite, partly altered kamacite and taenite. Minor goethite from terrestrial alteration of metal is present as thin coatings on grain boundaries and in cracks.

Geochemistry: Olivine (Fa10.4-10.6, FeO/MnO = 22-23, N = 3), clinopyroxene (Fs4.2-4.4Wo45.1-45.5, FeO/MnO = 10-11, N = 2), orthopyroxene (Fs9.3-9.6Wo1.5-2.0, FeO/MnO = 13-15, N = 2),

Classification: Lodranite (wehrlitic).

Specimens: 24.1 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018 Apr
Mass (g):1265
Shock stage:low
Weathering grade:low
Fayalite (mol%):10.4-10.6
Ferrosilite (mol%):4.2-4.4
Wollastonite (mol%):45.1-45.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):24.1
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH146; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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