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Northwest Africa 13675
Basic information Name: Northwest Africa 13675
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13675
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 24 g
Recommended:  CK5    [explanation]

This is 1 of 199 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 30 Jan 2021
Writeup from MB 110:

Northwest Africa 13675 (NWA 13675)

(Northwest Africa)

Purchased: 2020 Sep

Classification: Carbonaceous chondrite (CK5)

History: Purchased by Shun-Chung Yang and Juan Chen in September 2020 from a dealer in Guelmim, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Sparse granular, Cr-magnetite-bearing chondrules are set in a recrystallized matrix containing Cr-magnetite and plagioclase.

Geochemistry: Olivine (Fa29.3±0.8, range Fa28.3-30.1, N = 4), low-Ca pyroxene (Fs25.2Wo2.0), pigeonite (Fs23.1Wo5.7; Fs24.2Wo14.1; N = 2), augite (Fs15.0Wo37.0), plagioclase (An27.5Or3.9), magnetite (Cr2O3 = 3.4-3.6 wt.%, N = 2).

Classification: Carbonaceous chondrite (CK5).

Specimens: 6.9 g in the form of a polished endcut at UWB; remainder with Mr. S.-C. Yang and Mr. J. Chen.

Data from:
  Table 0
  Line 0:
Place of purchase:Guelmim
Date:P 2020 Sep
Mass (g):24
Shock stage:low
Weathering grade:low
Fayalite (mol%):29.3±0.8
Ferrosilite (mol%):25.2; 23.1; 24.2; 15.0
Wollastonite (mol%):2.0; 5.7; 14.1; 37.0
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):6.9
Type spec location:UWB
Main mass:S.-C. Yang/J. Chen
Comments:Work name SCY-9; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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     This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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