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Northwest Africa 10566
Basic information Name: Northwest Africa 10566
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10566
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 130 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 214 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 26 Mar 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10566 (NWA 10566)

(Northwest Africa)

Purchased: 2015 Jan

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Dr. David Gregory in January 2015 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed of angular mineral clasts of anorthite, pigeonite, ferropigeonite, orthopyroxene, augite, fayalitic olivine, silica polymorph, ilmenite, Cr-Ti-Fe spinel, troilite and kamacite, plus sparse rounded to angular glass fragments, set in a finer matrix. Some pigeonite grains are exsolved.

Geochemistry: Low-Ca pyroxene (Fs29.8Wo5.2, FeO/MnO = 50), pigeonite (Fs23.7Wo10.0, FeO/MnO = 44), ferropigeonite (Fs55.2Wo16.2, FeO/MnO = 66), augite (Fs44.5Wo38.9, FeO/MnO = 66), fayalite (Fa71.2; Fa96.2; FeO/MnO = 82-108; N = 2), plagioclase (An94.6-97.0Or0.2-0.0, N = 2). Bulk composition (R. Korotev, WUSL): INAA of subsamples gave (in wt.%) Na2O 0.41, FeO 13.86; (in ppm) Sc 30.2, Cr 1920, Co 42.3, Ni 190, La 6.76, Sm 3.20, Eu 0.888, Yb 2.30, Lu 0.324, Hf 2.2, Th 0.93.

Classification: Lunar (feldspathic breccia). Paired with NWA 7611 and NWA 8277 based on matching bulk elemental compositions.

Specimens: 20 g including one polished thin section at ROM; remainder with DGregory.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2015 Jan
Mass (g):130
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):71.2; 96.2
Ferrosilite (mol%):29.8; 23.7;55.2; 44.5
Wollastonite (mol%):5.2; 10.0; 16.2; 38.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:ROM
Main mass:DGregory
Comments:DGR027-15; submitted by A. Irving
Institutions
   and collections		 ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
DGregory: David Gregory, 230 First Avenue, Suite 108, St. Thomas, Ontario N5R 4P5, Canada (private address)
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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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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