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Northwest Africa 14965
Basic information Name: Northwest Africa 14965
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14965
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 790 g
Classification
  history:
Recommended:  Winonaite    [explanation]

This is 1 of 74 approved meteorites classified as Winonaite.   [show all]
Search for other: Primitive achondrites, Winonaites
Comments: Approved 23 Jul 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14965 (NWA 14965)

(Northwest Africa)

Purchased: 2021 Jan

Classification: Primitive achondrite (Winonaite)

History: Purchased by Darryl Pitt in January 2021 from a dealer in Tindouf, Algeria.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) The specimen has a poikiloblastic texture. Larger enstatite oikocrysts (up to 5 mm in size) enclose much smaller grains of forsterite and metal (both kamacite and taenite, ~10 vol.% overall). Other phases present are diopside, sodic plagioclase (as rounded grains), pentlandite, troilite, chlorapatite and rare daubreelite.

Geochemistry: Forsterite (Fa3.1-3.2, FeO/MnO = 15-19, N = 8), enstatite (Fs3.7-4.1Wo1.6-2.0, FeO/MnO = 12-15, N = 4), diopside (Fs1.1-1.2Wo44.8-45.0, FeO/MNO = 9-11, N = 3), plagioclase (Ab74.5-76.2An22.0-20.9Or3.5-2.9, N = 2), kamacite (Ni 6.9-7.2 wt.%, N = 5), taenite (Ni 20.5 wt.%).

Classification: Winonaite.

Specimens: 28.7 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Tindouf
Date:P 2021 Jan
Mass (g):790
Pieces:1
Class:Winonaite
Shock stage:low
Weathering grade:low
Fayalite (mol%):3.1-3.2
Ferrosilite (mol%):3.7-4.1; 1.1-1.2
Wollastonite (mol%):1.6-2.0: 44.8-45.0
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):28.7
Type spec location:UWB
Main mass:DPitt
Comments:Work name MVCH 632; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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