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Northwest Africa 10650
Basic information Name: Northwest Africa 10650
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10650
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 584 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  LL3.15
Recommended:  LL3.15    [explanation]

This is 1 of 7 approved meteorites classified as LL3.15.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 1 Mar 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 10650 (NWA 10650)

(Northwest Africa)

Purchased: 2015 Oct

Classification: Ordinary chondrite (LL3.15)

History: Purchased by Fabien Kuntz in October 2015 from a dealer in Laayoune, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, fairly closely packed chondrules (apparent diameter 500 ± 400 µm) are set in a fine-grained matrix.

Geochemistry: Olivine (Fa1.1-62.2; Cr2O3 in ferroan examples 0.07-0.75 wt.%, mean 0.17±0.18 wt.%, N = 17), orthopyroxene (Fs1.4-15.9Wo0.4-2.4, N = 3), pigeonite (Fs14.4Wo10.8), subcalcic augite (Fs11.7-14.6Wo33.5-31.3, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.11.

Classification: Ordinary chondrite (LL3.15). LL designation supported by magnetic susceptibility. The mean and standard deviation for Cr2O3 contents of ferroan olivine occurring as rims and as matrix grains indicate a subtype of 3.15 based on the method of Grossman and Brearley (2005, Figure 15a).

Specimens: 25.17 g including one polished thin section at PSF; remainder with Kuntz.

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Laayoune
Date:P 2015 Oct
Mass (g):584.3
Pieces:2
Class:LL3.15
Shock stage:S2
Weathering grade:W2/3
Fayalite (mol%):1.1-62.2
Ferrosilite (mol%):1.4-15.9; 14.4; 11.7-14.6
Wollastonite (mol%):0.4-2.4; 10.8; 33.5-31.3
Magnetic suscept.:4.11
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):25.17
Type spec location:PSF
Main mass:F. Kuntz
Comments:K284; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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)
Mike Markowitz   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

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