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Northwest Africa 10863
Basic information Name: Northwest Africa 10863
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10863
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 5 kg
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 344 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 27 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10863 (NWA 10863)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Eucrite, polymict)

History: The meteorite was bought in 2015 from a local meteorite dealer in Morocco.

Physical characteristics: The individual is partly covered with fusion crust and shows a dark-grayish interior.

Petrography: The meteorite is a breccia composed of up to 2 cm sized lithic and mineral clasts set into a fine-grained, clastic matrix. Lithic clasts include basaltic and dark melt clasts, dominant minerals are exsolved pyroxene and calcic plagioclase. Minor phases are FeS, chromite, SiO2 polymorphs and metallic iron. Some shock melt veins are present.

Geochemistry: low-Ca pyroxene: Fs40.5±10.0Wo2.3±0.6 (Fs28.8-61.9Wo1.6-4.0, n=41, FeO/MnO=27-34); Ca-pyroxene: Fs14.8±2.7Wo44.6±0.8 (Fs12.6-24.7Wo43.2-46.3, n=16, FeO/MnO=22-30); calcic plagioclase: An86.3±4.0 (An79.7-90.9, n=30)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):5000
Pieces:1
Class:Eucrite-pmict
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):40.5; 14.8
Wollastonite (mol%):2.3; 44.6
Classifier:A. Greshake, MNB
Type spec mass (g):24.4
Type spec location:MNB
Main mass:Jarkko Kettunen
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 Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7101 approved meteorites from (Northwest Africa) (plus 2004 unapproved names)

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