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Northwest Africa 16044
Basic information Name: Northwest Africa 16044
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 16044
Observed fall: No
Year found: 2021
Country: Morocco
Mass:help 185 g
Recommended:  CK4    [explanation]

This is 1 of 126 approved meteorites classified as CK4.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 29 Sep 2023
Writeup from MB 112:

Northwest Africa 16044 (NWA 16044)


Purchased: 2021 Jan

Classification: Carbonaceous chondrite (CK4)

History: Purchased January 2021 by Ashley Humphries in Quartzsite, AZ from Mohammed Hmani.

Physical characteristics: A single stone covered in black fusion crust, saw cut reveals a friable gray interior with dark chondrules.

Petrography: (A. S. Bell, CUB and D. Dickens, CCMS) This meteorite has a grey interior with dark dispersed well delineated magnetite-bearing equilibrated chondrules set in a coarse-grained recrystallized matrix dominated by Ni-bearing olivine containing abundant Cr-bearing magnetite. Minor phases include low-Ca pyroxene, pigeonite, augite, and diopside. Some FeS was detected. No metal was detected.

Geochemistry: (A. S. Bell, CUB and D. Dickens, CCMS) Olivine Fa33.1±0.4 range Fa32.5-33.8 (n = 9), low-Ca pyroxene Fs26.7±0.6Wo1.0±0.3 range Fs27.8-28.4Wo0.6-1.5, (n = 3), pigeonite Fs21.0Wo15.3 (n=1), augite Fs10.0 Wo43.3 (n=1),diopside: Fs9.0±0.1Wo46.1±2.0 range Fs8.9-10.0Wo45.8-46.6, (n=3), plagioclase An76.1±17.7Or0.7±1.0 range An37.0-88.5Or0.2-1.5, (n = 8), magnetite Cr2O3 4.5±0.2 range 4.4-4.7 wt.% (n = 6).

Classification: Carbonaceous chondrite (CK4)

Specimens: 20 g on deposit at Cascadia

Data from:
  Table 0
  Line 0:
Place of purchase:Quartzsite, AZ
Date:P 2021 Jan
Mass (g):185
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):33.1±0.4
Ferrosilite (mol%):26.7±0.6
Wollastonite (mol%):1.0±0.3
Classifier:A. S. Bell, CUB and D. Dickens, CCMS
Type spec mass (g):20
Type spec location:Cascadia
Main mass:Ashley Humphries
Comments:Main mass with Ashley Humphries, updated field name AHCK01; submitted by Dustin Dickens
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
CUB: Daniel Ozdín, Mineralogical Museum of Comenius University, Faculty of Natural Sciences, Ilkovicova 6, 842 15 Bratislava, Slovakia (institutional address; updated 2 Dec 2018)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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     This is 1 of 2012 approved meteorites from Morocco (plus 35 unapproved names) (plus 1 impact crater)

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