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Northwest Africa 7160
Basic information Name: Northwest Africa 7160
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7160
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 500 g
Meteoritical Bulletin:  MB 105  (2016)  H3
Recommended:  H3    [explanation]

This is 1 of 663 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 11 Mar 2016
Writeup from MB 105:

Northwest Africa 7160 (NWA 7160)

(Northwest Africa)

Purchased: 2011

Classification: Ordinary chondrite (H3)

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

Petrography: (A. Irving and S. Kuehner, UWS; T. Bunch, NAU) Well-formed, fairly closely-packed chondrules are set in a finer matrix.

Geochemistry: Olivine (Fa0.5-33.2, Cr2O3 in ferroan olivine 0.06-0.15 wt.%, mean 0.08 wt.%, sd 0.02 wt.%, N = 8), orthopyroxene (Fs2.8-39.7Wo0.5-2.0, N = 3), clinopyroxene (Fs10.2-10.3Wo31.3-31.8, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg)=4.97.

Classification: Ordinary chondrite (H3). H group classification based on magnetic susceptibility.

Specimens: 21.6 g including one polished thin section at PSF; main mass with Mr. M. Cimała.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2011
Mass (g):500
Shock stage:S2
Weathering grade:W2
Magnetic suscept.:4.97
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.6
Type spec location:PSF
Main mass:M. Cimala
Comments:MC 084; submitted by A. Irving
   and collections
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
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)
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 uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Robert Smart   
Ryan Upchurch   
Woreczko Jan & Wadi      

     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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