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Northwest Africa 11813
Basic information Name: Northwest Africa 11813
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11813
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 25.3 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 303 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 May 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11813 (NWA 11813)

(Northwest Africa)

Purchased: 2017

Classification: Ordinary chondrite (LL3)

Physical characteristics: Greyish stone. Cut surface reveals a dark grey interior with closely packed well-defined chondrules.

Petrography: (J. Gattacceca, H. Pourkhorsandi, CEREGE) Packed chondrules with average apparent diameter 920 μm (N=36).

Geochemistry: Olivine Fa18.2±8.1, range 1.1-33.8, PMD 33% (N=13), Cr2O3 in ferroan olivine 0.17±0.12 wt% (N=11). Orthopyroxene Fs8.0±4.1Wo2.3±1.8 (N=4).

Classification: LL3. LL than L classification from magnetic susceptibility.

Specimens: Type specimen at CEREGE. Main mass with Fabien Kuntz.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2017
Mass (g):25.3
Pieces:1
Class:LL3
Weathering grade:W3
Fayalite (mol%):18.2±8.1 (N=13)
Ferrosilite (mol%):8.0±4.1 (N=4)
Wollastonite (mol%):2.3±1.8
Magnetic suscept.:3.51
Classifier:J. Gattacceca, H. Pourkhorsandi, CEREGE
Type spec mass (g):5.15
Type spec location:CEREGE
Main mass:Kuntz
Comments:work name K368; submitted by J. 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 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6559 approved meteorites from (Northwest Africa) (plus 2021 unapproved names)

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