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Northwest Africa 11156
Basic information Name: Northwest Africa 11156
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11156
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 360 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 258 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 4 Mar 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11156 (NWA 11156)

(Northwest Africa)

Purchased: 2016

Classification: HED achondrite (Eucrite, monomict)

History: The meteorite was bought in 2016 from a meteorite dealer in Morocco.

Physical characteristics: Grayish individual with patches of fusion crust.

Petrography: The meteorite displays a characteristic basaltic texture of up to 1 mm sized exsolved pyroxenes and up to 1.5 sized often lath-shaped calcic plagioclase. Minor phases include FeS, chromite, and silica. No metallic iron was found.

Geochemistry: low-Ca pyroxene: Fs60.9±0.4Wo2.0±0.4 (Fs60.2-61.4Wo1.6-3.0, n=14, FeO/MnO=30-33); Ca-pyroxene: Fs27.0±0.7Wo43.2±0.7 (Fs24.7-28.0Wo42.2-45.1, n=13, FeO/MnO=27-34); calcic plagioclase: An88.9±1.6 (An84.4-90.4, n=16)

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016
Mass (g):360
Pieces:1
Class:Eucrite-mmict
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):60.9; 27.0
Wollastonite (mol%):2.0; 43.2
Classifier:A. Greshake, MNB
Type spec mass (g):21.9
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 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:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8390 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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