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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 604 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 Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1837 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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