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Northwest Africa 14442
Basic information Name: Northwest Africa 14442
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14442
Observed fall: No
Year found: 2019
Country: Morocco
Mass:help 73.1 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 610 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 11 Nov 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14442 (NWA 14442)

Morocco

Purchased: 2019 Feb

Classification: Ureilite

History: Purchased by Sean Tutorow from a dealer in August 2019 in Morocco.

Physical characteristics: The type specimen has a rugged, patinaed dark brown surface. The interior has a gray to brown shade in some areas.

Petrography: (A. Bouvier, UBayr) The specimen has a fine-grained texture (grain size from 400 to 800 microns) including ~80 vol% olivine, 15 vol% pigeonite, 2 vol% as orthopyroxene, and remaining as dark interstitial material that consists of varying amounts of graphite, metal, Fe-rich metal (~5% Ni), and weathering products identified as iron oxides.

Geochemistry: Olivine cores Fa19.9±4.2 (n=21) and reduced rims Fa6.1±3.6 (n=13), with minor CaO=0.4±0.2 wt% and Cr2O3=0.7±0.2 wt% (n=34), pigeonite Fs16.2±3.2Wo11.0±2.2 with the following minor element compositions Cr2O3=1.2±0.2, Al2O3=0.8±0.6 and TiO2=0.06±0.06 (all in wt%) (n=8), and low-Ca pyroxene Fs5.6±0.6Wo1.1±0.1 (n=3).

Classification: Ureilite

Specimens: 14.7 g including a polished mount at UBayr. S. Tutorow holds the main mass.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019 Feb
Mass (g):73.1
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:medium
Fayalite (mol%):19.9±4.2 (n=21)
Ferrosilite (mol%):16.2±3.2 (n=8)
Wollastonite (mol%):11.0±2.2 (n=8)
Classifier:A. Bouvier, UBayr
Type spec mass (g):14.7
Type spec location:UBayr
Main mass:S. Tutorow
Comments:G612; submitted by A. Bouvier
Institutions
   and collections
UBayr: Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany (institutional address; updated 5 Feb 2020)
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:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1902 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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