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Northwest Africa 10864
Basic information Name: Northwest Africa 10864
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10864
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 303 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 82 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 22 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10864 (NWA 10864)

(Northwest Africa)

Purchased: 2015

Classification: Primitive achondrite (Lodranite)

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

Physical characteristics: The individuals lack any fusion crust and display a light to dark brownish-orange interior.

Petrography: The meteorite is a breccia dominantly composed of up to 2 mm sized angular olivine, orthopyroxene and clinopyroxene grains. Clinopyroxene often shows a greenish colour. Other phases include FeNi metal and chromite.

Geochemistry: olivine: Fa11.4±0.1 (Fa11.2-11.6, n=23, FeO/MnO=24-30); low-Ca pyroxene: Fs10.4±0.1Wo3.7±0.4 (Fs10.2-10.5Wo2.9-4.2, n=17, FeO/MnO=13-17); Ca-pyroxene: Fs4.7±0.4Wo43.4±1.1 (Fs4.3-5.7Wo39.5-44.7, n=20, FeO/MnO=9-13)

Classification: Lodranite breccia. Likely paired with NWA 8118, NWA 8216 and NWA 8251.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):303
Pieces:2
Class:Lodranite
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):11.4
Ferrosilite (mol%):10.4; 3.7
Wollastonite (mol%):4.7; 43.4
Classifier:A. Greshake, MNB
Type spec mass (g):20.2
Type spec location:MNB
Main mass:Jarkko Kettunen
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum f├╝r Naturkunde, Invalidenstra├če 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
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7374 approved meteorites from (Northwest Africa) (plus 1957 unapproved names)

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