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Northwest Africa 11111
Basic information Name: Northwest Africa 11111
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11111
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 111 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 201 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 21 Feb 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11111 (NWA 11111)

Morocco

Find: 2016

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Ke Zuokai in Dec. 2016 from a Moroccan dealer.

Physical characteristics: No fusion crust; covered by weathering products.

Petrography: Fine-grained mineral (plagioclase, low-Ca pyroxene and olivine) clasts and anorthositic rock debris (0.01-0.6 mm) are set in the very fine-grained recrystallized matrix. Compared to those in clasts (Fa27.6-45.6), the recystallized olivines are more Mg-rich (Fa21.4-32.0). Minor unrecrystallized shock melt veins (~50 μm) are also present, which crosscut the recrystallized matrix. Accessory Fe-Ni metal, troilite, and chromite were observed.

Geochemistry: Plagioclase An96.4-99.4Ab0.5-3.5Or0.4; olivine in clast Fa27.6-45.6, Fe/Mn=77.7-111.3; olivine in matrix Fa21.4-32.0, Fe/Mn=70.9-113.5; orthopyroxene Fs22.5-51.7Wo2.0-4.8, Fe/Mn=49.9-80.8; augite Fs12.4-24.0Wo38.2-45.1, Fe/Mn=39.5-51.9; pigeonite Fs22.1-37.0Wo5.6-9.2, Fe/Mn=44.3-65.0.

Classification: Lunar feldspathic melt breccia

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Beijing
Date:2016
Mass (g):111
Pieces:2
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):26.7±3.6 (n=14); 39.5±5.2 (n=13)
Ferrosilite (mol%):39.4±10.2 (n=10); 17.4±3.8 (n=6); 28.4±6.3 (n=4)
Wollastonite (mol%):3.2±0.9 (n=10); 41.4±2.4 (n=6); 7.8±1.5 (n=4)
Classifier:Li Y., PMO
Type spec mass (g):20
Type spec location:PMO
Main mass:Ke Zuokai
Comments:Submitted by Hsu W.
Institutions
   and collections
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1505 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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