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Northwest Africa 10318
Basic information Name: Northwest Africa 10318
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10318
Observed fall: No
Year found: 2015
Country: Morocco
Mass:help 31 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Lunar
Recommended:  Lunar    [explanation]

This is 1 of 89 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 7 Oct 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10318 (NWA 10318)

Morocco

Purchased: 22 Apr 2015

Classification: Lunar meteorite

History: An individual of 31.0 g was found in Morocco and purchased from a Moroccan meteorite dealer in Dakhla, Morocco, April 22, 2015.

Petrography: (A. Bischoff and S. Ebert, IfP) This meteorite is a severely shocked rock with maskelynite (~65-75%), olivine (~10%), and low-Ca pyroxene (~15-20%) as dominant silicate phases. The mafics occur as rounded phases poikilitically enclosed in maskelynite. The shock veins probably formed after the shock that transformed the plagioclase to maskelynite, because they cut through homogenous maykelynite areas. Accessory phases were observed include troilite and chromite.

Geochemistry: Mineral compositions and geochemistry: Olivine Fa26.4±0.6, Fe/Mn=97, n=11; low-Ca-pyroxene Fs21.8±0.7Wo5.0±2.0, Fe/Mn=54, n=11; plagioclase An97.1.±0.6, range: An96.0-98.2 mol% An; n=10;

Classification: Achondrite (lunar, granulitic breccia of olivine-bearing anorthositic norite precursor), low weathering grade, high shock stage (S5).

Specimens: A total of 6.2 g including a thin section on deposit at IfP. S. Decker (Meteorite-Museum, 55430 Oberwesel, Germany) holds the main mass.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Dakhla, Morocco
Date:P 22 Apr 2015
Mass (g):31
Pieces:1
Class:Lunar
Classifier:Bischoff A. and Ebert S.
Type spec mass (g):6.2
Type spec location:IfP
Main mass:S. Decker (Meteorite-Museum, 55430 Oberwesel, Germany)
Finder:Unknown
Comments:Comment: Field Number: 04/2015; submitted by Ebert S.
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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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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