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Northwest Africa 10211
Basic information Name: Northwest Africa 10211
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10211
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 279 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L(LL)3
Recommended:  L(LL)3    [explanation]

This is 1 of 14 approved meteorites classified as L(LL)3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 18 Jul 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10211 (NWA 10211)

(Northwest Africa)

Purchased: 2014

Classification: Ordinary chondrite (L(LL)3)

History: Two fragments totaling 278.7 g were purchased by Sergey Vasiliev in 2014 by internet from a dealer from Morocco.

Petrography: The sample has a well-defined chondritic texture.

Geochemistry: Analyses of olivine and pyroxene clearly show the highly unequilibrated character of the rock (petrologic type 3). Olivine, Fa15.0±10.4 (Fa0.4-42.7; n=32); low-Ca pyroxene, Fs9.3±6.6Wo0.8±0.9 (Fs1.5-20.2Wo0.1-4.0, n=25).

Classification: Based on the chemical data a H, L, or LL classification is impossible. However, based on the chondrule size (generally > 0.4 mm) the rock must be L3 or LL3. In comparison to the LL3 chondrite Krymka, the chondrules in this new chondrite are slightly smaller. Therefore, an L3 chondrite classification is suggested. The olivines show planar fractures clearly indicating shock stage S3. A shock vein has also been observed. The sample is a heavily weathered (W3-4), only having relict metal.

Data from:
  MB104
  Table 0
  Line 0:
Date:P 2014
Mass (g):278.7
Pieces:2
Class:L(LL)3
Shock stage:S3
Weathering grade:W3-4
Fayalite (mol%):15.0±10.4 (0.4-42.7; n=32)
Ferrosilite (mol%):9.3±6.6 (1.5-20.2; n=25)
Wollastonite (mol%):0.8±0.9 (0.1-4.0; n=25)
Classifier:A. Bischoff and S. Ebert, IfP
Type spec mass (g):23.9
Type spec location:IfP
Main mass:Sergey Vasiliev
Finder:Anonymous
Comments: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
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
John A. Shea   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6984 approved meteorites from (Northwest Africa) (plus 2008 unapproved names)

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