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Northwest Africa 14017
Basic information Name: Northwest Africa 14017
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14017
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 1665 g
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 284 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 17 Jul 2021
Writeup from MB 110:

Northwest Africa 14017 (NWA 14017)

(Northwest Africa)

Purchased: 2020 Oct

Classification: Martian meteorite (Shergottite)

History: Purchased by Luc Labenne in October 2020 from a Moroccan dealer and subsequently acquired by Hermès, Paris.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Porphyritic texture. Composed of shock-darkened olivine phenocrysts (patchy brown in thin section, exhibiting limited core to rim compositional zoning) within a groundmass of zoned clinopyroxene and maskelynite together with accessory merrillite, Ti chromite, ilmenite, pyrrhotite, pentlandite and minor secondary calcite. Some olivine phenocrysts contain melt inclusions composed of aluminous clinopyroxene, pleonaste and feldspathic to silicic glass. Small shock melt pockets are also present, some connected by thin dark shock melt veinlets.

Geochemistry: Olivine (cores Fa30.8-35.4, N = 5; rims 37.5-39.9, N = 3; FeO/MnO = 50-57), pigeonite (Fs24.1-30.8Wo9.6-10.9, FeO/MnO = 30-33, N = 4), subcalcic augite (Fs17.9-19.2Wo33.0-34.2, FeO/MnO = 25-30), maskelynite (An50.4Or0.7; 61.8-63.6Or0.4-0.5; N = 4).

Classification: Shergottite (olivine-phyric).

Specimens: 20.0 g including one polished thin section at UWB; remainder with Hermès, Paris.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Oct
Mass (g):1665
Class:Martian (shergottite)
Shock stage:high
Weathering grade:low
Fayalite (mol%):29.6-39.9
Ferrosilite (mol%):24.1-30.8; 17.9-19.2
Wollastonite (mol%):9.6-10.9; 33.0-34.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.0
Type spec location:UWB
Main mass:Hermès, Paris
Comments:Work name LAB21-2; submitted by A. Irving
   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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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