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Northwest Africa 14172
Basic information Name: Northwest Africa 14172
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14172
Observed fall: No
Year found: 2020
Country: Mali
Mass:help 230 g
Classification
  history:
Recommended:  CK5    [explanation]

This is 1 of 197 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 6 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14172 (NWA 14172)

Mali

Purchased: 2020 Feb

Classification: Carbonaceous chondrite (CK5)

History: Purchased by Mbark Arjdal in February 2020 from a Malian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Sparse separated, granular chondrules containing Cr-magnetite are set in a matrix containing Cr-magnetite (stained red-brown in thin section), calcic plagioclase and minor ilmenite

Geochemistry: Olivine (Fa31.6±0.1, range Fa31.4-31.8, N = 6), low-Ca pyroxene (Fs26.1±0.0Wo2.7±1.6, range Fs24.5-27.4Wo1.6-3.8, N = 2), augite (Fs10.0±0.4Wo44.6±2.1, range Fs9.8-10.3Wo46.1-43.1, N = 2), plagioclase (An68.9-72.6Or2.4, N = 2), magnetite (Cr2O3 = 4.0-4.3 wt.%, N = 3).

Classification: Carbonaceous chondrite (CK5).

Specimens: 26.1 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mali
Date:P 2020 Feb
Mass (g):230
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:low
Fayalite (mol%):31.6±0.1
Ferrosilite (mol%):26.1±0.0
Wollastonite (mol%):2.7±1.6
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):26.1
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 762; submitted by A. Irving
Institutions
   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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
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
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Mali
Coordinates:Unknown.

Statistics:
     This is 1 of 79 approved meteorites from Mali (plus 2 unapproved names)

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