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Northwest Africa 13417
Basic information Name: Northwest Africa 13417
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13417
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 350 g
Recommended:  H3-6    [explanation]

This is 1 of 76 approved meteorites classified as H3-6.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 1 Nov 2020
Writeup from MB 109:

Northwest Africa 13417 (NWA 13417)

(Northwest Africa)

Purchased: 2012 Sep

Classification: Ordinary chondrite (H3-6)

History: Purchased by Blaine Reed in September 2012 from a Moroccan dealer at the Denver Show.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Most of this specimen consists of well-formed chondrules (apparent diameter 600±390 µm, N = 24) set in a finer grained matrix containing altered metal, troilite, chromite and apatite. One type 6 lithic clast (1 cm across) containing rare chondrule remnants is present in the studied thin section.

Geochemistry: Olivine (Fa18.8±2.9, range Fa16.8-23.8, N = 5; Cr2O3 in ferroan olivine (Fa23.8-40.2) 0.01-0.11 wt.%, mean 0.05±0.04 wt.%, N = 5), low-Ca pyroxene (Fs12.3±3.9Wo1.2±1.3, range Fs8.7-17.8Wo0.3-3.0, N = 4), pigeonite (Fs20.4Wo10.1), subcalcic augite (Fs21.1Wo27.4), augite (Fs13.0Wo41.4). Magnetic susceptibility log χ (× 10-9 m3/kg) = 5.02.

Classification: Ordinary chondrite (H3-6 breccia).

Specimens: 24.7 g including one polished thin section at PSF; remainder with Mr. B. Reed.

Data from:
  Table 0
  Line 0:
Place of purchase:Denver
Date:P 2012 Sep
Mass (g):349.6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):26.2±11.3
Ferrosilite (mol%):12.3±3.9
Wollastonite (mol%):1.2±1.3
Magnetic suscept.:5.02
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):24.7
Type spec location:PSF
Main mass:B. Reed
Comments:Work name BR108; submitted by A. Irving
   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)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Robert Smart   
Ryan Upchurch   

     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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