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Northwest Africa 12008
Basic information Name: Northwest Africa 12008
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12008
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 577 g
Classification
  history:
Recommended:  Lunar (basalt)    [explanation]

This is 1 of 19 approved meteorites classified as Lunar (basalt).   [show all]
Search for other: Lunar meteorites
Comments: Approved 27 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12008 (NWA 12008)

Morocco

Purchased: 2018 Aug

Classification: Lunar meteorite (basalt)

History: Purportedly found in Morocco and purchased by Ben Hoefnagels in August 2018 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Small olivine phenocrysts (stained orange-brown) are set in an intersertal groundmass composed mainly of zoned clinopyroxene and elongate lath-like maskelynite with accessory skeletal ilmenite, Ti-chromite, Cr-Ti-Fe spinel, troilite and minor barite. Olivine contains inclusions of chromite and quenched melt inclusions (surrounded by radial cracks) composed of Al-Ti-bearing augite + K-bearing glass.

Geochemistry: Olivine (cores Fa36.6-42.3, rim Fa90.0, FeO/MnO = 96-99, N = 3), pigeonite (Fs31.1Wo14.0, FeO/MnO = 50), subcalcic augite (Fs25.9-71.4Wo28.6-23.1, FeO/MnO = 50-75, N = 5), augite (Fs23.2Wo39.7, FeO/MnO = 49), ferropigeonite (Fs80.1Wo19.5, FeO/MnO = 79), augite in melt inclusion (Fs28.8Wo50.1, FeO/MnO = 71, Al2O3 = 10.5 wt.%, TiO2 = 5.3 wt.%), plagioclase (An86.8-87.6Or0.4-0.3, N = 2).

Classification: Lunar (mare basalt).

Specimens: 25.2 g including two polished thin sections at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2018 Aug
Mass (g):577
Pieces:1
Class:Lunar (basalt)
Shock stage:high
Weathering grade:low
Fayalite (mol%):39.0-90.0
Ferrosilite (mol%):25.9-71.4
Wollastonite (mol%):28.6-23.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):25.2
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH155; submitted by A. Irving
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1312 approved meteorites from Morocco (plus 14 unapproved names) (plus 1 impact crater)

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