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Northwest Africa 7876
Basic information Name: Northwest Africa 7876
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7876
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 240 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  L3.1
Recommended:  L3.1    [explanation]

This is 1 of 16 approved meteorites classified as L3.1.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 27 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7876 (NWA 7876)

(Northwest Africa)

Purchased: 2012 Oct

Classification: Ordinary chondrite (L3.1)

History: Purchased by F. Kuntz in October 2012 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules and sparse angular olivine grains in a finer grained matrix.

Geochemistry: Olivine (Fa0.3-57.9; Cr2O3 in ferroan olivine = 0.13-0.72 wt.%, mean 0.25, sd 0.17, N = 13), orthopyroxene (Fs2.7-28.0Wo0.5-3.6), pigeonite (Fs13.9Wo9.4), subcalcic augite (Fs14.4Wo34.1).

Classification: Ordinary chondrite (L3.15). Estimation of subtype based on the scheme of Grossman and Brearley (2005).

Specimens: Type specimen plus one polished thick section on deposit with PSF; main mass 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:
  MB102
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2012 Oct
Mass (g):240
Pieces:1
Class:L3.1
Shock stage:S2
Weathering grade:W1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.12
Type spec location:PSF
Main mass:F. Kuntz
Comments:K 192; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
John A. Shea   
Piotr gural100   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6781 approved meteorites from (Northwest Africa) (plus 2061 unapproved names)

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