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Northwest Africa 15337
Basic information Name: Northwest Africa 15337
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15337
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 320 g
Meteoritical Bulletin:  MB 111  (2023)  CK3
Recommended:  CK3    [explanation]

This is 1 of 88 approved meteorites classified as CK3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Comments: Approved 22 Oct 2022
Writeup from MB 111:

Northwest Africa 15337 (NWA 15337)

(Northwest Africa)

Purchased: 2021

Classification: Carbonaceous chondrite (CK3)

History: Purchased by Craig Zlimen in 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed unequilibrated chondrules (apparent diameter 950±260 μm, N = 26) containing Cr-magnetite are set in a fine grained matrix containing Cr-magnetite and pentlandite. Some augite grains are intergrown with calcite. A few very fine-grained CAI are present in the studied thin section.

Geochemistry: Olivine (Fa21.3±12.0, range Fa0.3-35.1, N = 7), augite (Fs14.4±5.8Wo48.3±2.9, range Fs8.0-19.5Wo44.9-50.1, N = 3), low-Ca pyroxene (Fs5.50±6.1Wo5.2±1.0, range Fs0.9-12.4Wo4.5-6.4, N = 3), Al-Ti-diopside in CAI (Fs1.5Wo47.5, Al2O3 12.0 wt.%, TiO2 1.2 wt.%), plagioclase (Ab52.9An45.9Or1.2; Ab70.5An26.7Or2.8; N = 2), magnetite (Cr2O3 2.7-3.3 wt.%, N = 4).

Classification: Carbonaceous chondrite (CK3).

Specimens: 29 g including one polished thin section at UWB; remainder with Mr. C. Zlimen.

Data from:
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021
Mass (g):320
Shock stage:S2
Weathering grade:low
Fayalite (mol%):21.38±12.0
Ferrosilite (mol%):14.4±5.8; 5.5±6.1
Wollastonite (mol%):48.3±2.9; 5.2±1.0
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):29
Type spec location:UWB
Main mass:C. Zlimen
Comments:Work name ZLI 074; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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     This is 1 of 9772 approved meteorites from (Northwest Africa) (plus 1862 unapproved names)

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