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Northwest Africa 7168
Basic information Name: Northwest Africa 7168
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7168
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 1070 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  LL4
Recommended:  LL4    [explanation]

This is 1 of 357 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 2 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 7168 (NWA 7168)

(Northwest Africa)

Purchased: 2011

Classification: Ordinary chondrite (LL4)

History: Purchased by Marcin Cimala in 2011 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular clasts containing well formed chondrules (up to 2.5 mm in diameter) in finer grained, recrystallized matrix.

Geochemistry: Olivine (Fa28.8-29.4, N = 3), orthopyroxene (Fs23.3-23.9Wo3.3-1.6, N = 3), clinopyroxene (Fs10.3-11.0Wo43.7-43.9, N = 2).

Classification: Ordinary chondrite (LL4 breccia)).

Specimens: 20.4 g including one polished thin section at PSF; main mass with Mr. M. Cimala.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2011
Mass (g):1070
Pieces:1
Class:LL4
Shock stage:S2
Weathering grade:W0/1
Fayalite (mol%):28.8-29.4 (N = 3)
Ferrosilite (mol%):23.3-23.9
Wollastonite (mol%):3.3-1.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.4
Type spec location:PSF
Main mass:M. Cimala
Comments:MC 095; 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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: 
Coordinates:Unknown.

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

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