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Northwest Africa 10678
Basic information Name: Northwest Africa 10678
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10678
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 49.2 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 178 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 2 Jul 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10678 (NWA 10678)

(Northwest Africa)

Purchased: 2016 Feb

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Gary Fujihara in February 2016 from a dealer in Ouarzazate, Morocco.

Physical characteristics: A single stone (49.15 g) lacking fusion crust. Interior slices exhibit separated white clasts and rare small metal grains set in a black matrix (~60 vol.%).

Petrography: (A. Irving and S. Kuehner, UWS) Olivine-poor feldspathic breccia composed of angular mineral grains in a finer matrix. Minerals are anorthite, orthopyroxene, pigeonite, augite, rare olivine, ilmenite, Ti-chromite, troilite, taenite and zirconolite.

Geochemistry: (P. Carpenter, WUSL; S. Kuehner, UWS) Orthopyroxene (Fs39.9Wo4.8, FeO/MnO = 54), pigeonite (Fs31.8Wo14.7, FeO/MnO = 49), subcalcic augite (Fs21.2Wo33.9, FeO/MnO = 44), low-Ca pyroxene host (Fs43.8Wo10.8, FeO/MnO = 67), clinopyroxene exsolution lamella (Fs28.4Wo33.9, FeO/MnO = 57), anorthite (An95.0-98.2Or0.1, N = 4), olivine (Fa24.8-47.7, FeO/MnO = 83-97, N = 4). Bulk composition (R. Korotev, WUSL) INAA of subsamples gave (in wt.%) FeO 3.8, Na2O 0.39; (in ppm) Sc 7.2, Cr 490, Co 13, La 6.2, Sm 2.8, Eu 0.91, Yb 1.8, Lu 0.25, Hf 2.0, Th 0.9.

Classification: Lunar (feldspathic breccia).

Specimens: 9.85 g including one slice and a polished mount at UWB; remainder with Mr. G. Fujihara.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2016 Feb
Mass (g):49.15
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):24.8-47.7
Ferrosilite (mol%):39.9; 31.8; 21.2; 43.8; 28.4
Wollastonite (mol%):4.8; 14.7; 33.9; 10.8; 33.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):9.85
Type spec location:UWB
Main mass:G. Fujihara
Comments:GF16-1; 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)
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)
Catalogs:
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:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Denis gourgues   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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