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Northwest Africa 11208
Basic information Name: Northwest Africa 11208
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11208
Observed fall: No
Year found: 2016
Country: Western Sahara
Mass:help 160.9 g
Classification
  history:
Recommended:  CO3.0    [explanation]

This is 1 of 17 approved meteorites classified as CO3.0.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 22 Apr 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11208 (NWA 11208)

Western Sahara

Purchased: 2016 May 25

Classification: Carbonaceous chondrite (CO3.0)

History: Purchased from Abdeltif Mechaguen

Physical characteristics: A dark irregular stone. Cut surface reveals dark interior with small chondrules.

Petrography: Chondrules (mostly type I) and small CAIs in a dark brown matrix. Chondrule mean apparent diameter 170±90 μm (N=40). Abundant metal and associated terrestrial weathering products.

Geochemistry: Olivine Fa18.2±15.7, range 1.1-40.3, PMD 79% (N=8). Ferroan olivine has Cr2O3 0.34±0.05 wt% (N=5). Orthopyroxene Fs3.5±2.5Wo1.0±0.3. Magnetic susceptibility log χ (× 10-9 m3/kg)=4.82.

Classification: CO3.0. Subtype is from the Cr2O3 content of ferroan olivine.

Specimens: type specimen and polished sections at CEREGE. Main mass with Pierre-Marie Pelé.

Data from:
  MB106
  Table 0
  Line 0:
Date:P 2016 May 25
Mass (g):160.9
Pieces:7
Class:CO3.0
Weathering grade:moderate
Fayalite (mol%):18.2±15.7 (N=8)
Ferrosilite (mol%):3.5±2.5 (N=5)
Wollastonite (mol%):1.0±0.3
Magnetic suscept.:4.82
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):23.6
Type spec location:CEREGE
Main mass:Pierre-Marie Pelé
Finder:Pierre-Marie Pelé
Comments:work name CC-1601; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Europole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 9 Mar 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 106, in preparation (2017)
Find references in NASA ADS:
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Geography:

Western Sahara
Coordinates:Unknown.

Statistics:
     This is 1 of 169 approved meteorites from Western Sahara (plus 18 unapproved names)

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