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Northwest Africa 8793
Basic information Name: Northwest Africa 8793
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8793
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 624 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  H(L)3
Recommended:  H(L)3    [explanation]

This is 1 of 2 approved meteorites classified as H(L)3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 26 May 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 8793 (NWA 8793)

(Northwest Africa)

Purchased: 2011 Jun

Classification: Ordinary chondrite (H(L)3)

History: Purchased by Fabien Kuntz in June 2011 from a Moroccan dealer at the Ensisheim Show.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules (average apparent diameter 700 μm) are set in a finer-grained matrix containing abundant altered metal.

Geochemistry: Olivine (Fa11.3-30.6; Cr2O3 in ferroan examples 0.02-0.13 wt.%, mean 0.08±0.04 wt.%, N = 8), orthopyroxene (Fs4.5-15.2Wo0.3-1.1, N = 3), subcalcic augite (Fs9.1Wo29.5), augite (Fs6.1Wo44.7). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.68.

Classification: Ordinary chondrite, L(H)3.

Specimens: 26.2 g plus one polished thin section at PSF; 26.05 g at MGC; main mass with Kuntz.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Ensisheim
Date:P 2011 Jun
Mass (g):624
Pieces:1
Class:H(L)3
Shock stage:S2
Weathering grade:W2/3
Fayalite (mol%):11.3-30.6
Ferrosilite (mol%):4.5-15.2
Wollastonite (mol%):0.3-1.1
Magnetic suscept.:4.68
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):26.2
Type spec location:PSF
Main mass:F. Kuntz
Comments:K294; submitted by P. Sipiera
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)
MGC: Muséum Georges Cuvier, Montbéliard, France (institutional address; updated 1 Oct 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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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 7027 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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