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Northwest Africa 14033
Basic information Name: Northwest Africa 14033
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14033
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 193 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 17 Jul 2021
Writeup from MB 110:

Northwest Africa 14033 (NWA 14033)

(Northwest Africa)

Purchased: 2021 Mar

Classification: Carbonaceous chondrite (CK5)

History: The meteorite was purchased from a group of meteorite hunters in Nouadhibou, Mauritania, in March, 2021.

Physical characteristics: Brownish rock with minor fusion crust.

Petrography: The meteorite displays a brownish to dark orange interior and consists of sparse, well separated chondrules (apparent mean diameter about 700 µm) set in abundant recrystallized matrix dominated by ferroan Ni-bearing olivine. Minor phases are nests of intermediate plagioclase, low-Ca pyroxene, Ca-pyroxene, and FeS. Cr-rich magnetite is abundant; no metal was found in the section studied. The meteorite is strongly weathered and contains secondary calcite and barite.

Geochemistry: olivine: Fa29.6±0.2 (Fa29.2-29.9, FeO/MnO=112±12; NiO=0.50±0.03 wt%, n=10); low-Ca pyroxene: Fs25.0±0.2Wo0.8±0.04 (Fs24.7-25.3Wo0.7-0.9, n=11); Ca-pyroxene: Fs8.9±3.5Wo50.8±2.7 (Fs1.8-12.9Wo47.6-55.3, n=9); feldspar: An38.6-52.8Ab45.7-58.3Or1.6-3.2, n=11; magnetite contains 4.8±0.1 wt% Cr2O3, n=4

Data from:
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021 Mar
Mass (g):193
Shock stage:S1
Weathering grade:high
Fayalite (mol%):29.6
Ferrosilite (mol%):25.0; 8.9
Wollastonite (mol%):0.8; 50.8
Classifier:A. Greshake, MNB
Type spec mass (g):26.3
Type spec location:MNB
Main mass:Salamu Ali
Comments:Submitted by Ansgar Greshake
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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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