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Northwest Africa 12633
Basic information Name: Northwest Africa 12633
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12633
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 271 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  Martian (Shergottite)
Recommended:  Martian (Shergottite)    [explanation]

This is 1 of 298 approved meteorites (plus 2 unapproved names) classified as Martian (Shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 27 Sep 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12633 (NWA 12633)

(Northwest Africa)

Purchased: 2018

Classification: Martian meteorite (Shergottite)

History: Found in the Sahara by nomads in 2018. Bought in Nouakchott, Mauritania, in 2018

Physical characteristics: Cut surface shows a fine grained, dark-green interior.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Main minerals are zoned pyroxene and maskelynite. Other minerals: FeTi oxides, sulfides.

Geochemistry: Pyroxene Fs26.0±9.7Wo24.3±12.6, range Fs14.2-43.3, FeO/MnO 38.7±4.8 (n=9). Plagioclase An73.9±1.7Ab25.6±16Or0.5±0.1 (n=9). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.74.

Classification: Martian meteorite (Shergottite)

Specimens: Type specimen at CEREGE, main mass Jambon.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Nouakchott, Mauritania
Date:P 2018
Mass (g):271
Pieces:1
Class:Martian (Shergottite)
Magnetic suscept.:3.74
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):20.5
Type spec location:CEREGE
Main mass:Albert Jambon
Comments:work name IK180919a; submitted by Jérôme Gattacceca
Institutions
   and collections		 CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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