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Northwest Africa 14127
Basic information Name: Northwest Africa 14127
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14127
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 146 g
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 300 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 23 Aug 2021
Writeup from MB 110:

Northwest Africa 14127 (NWA 14127)

(Northwest Africa)

Purchased: 2021 May

Classification: Martian meteorite (Shergottite)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania in May, 2021.

Physical characteristics: Nine dark greenish fragments without fusion crust.

Petrography: The meteorite shows a porphyritic texure of up to 1 mm sized compositionally zoned olivine phenocrysts set in a groundmass of dominantly pyroxene and maskelynite. Pyroxenes typically have pigeonitic cores and augitic rims. Olivine phenocrysts often clump together and frequently contain magmatic inclusions with radial cracks extending into the host crystals. Maskelynite is found primarily as acicular laths. Minor phases are small homogeneous olivine, titanomagnetite, ilmenite, and troilite. The meteorite is highly shocked and contains shock melt veins and pockets. Secondary calcite and barite are present.

Geochemistry: olivine phenocrysts: Fa41.9±7.8 (Fa31.6-52.5, FeO/MnO=47±2, n=7); small olivine: Fa57.8±0.1, FeO/MnO=46±1, n=3; zoned pyroxene: Fs29.5±7.9Wo17.8±11.1 (Fs17.9-38.4Wo7.1-37.7, FeO/MnO=28±3, n=15); maskelynite: An49.4±38Ab46.9±2.7Or3.7±2.1 (An44.1-53.5Ab42.6-49.9Or0.3-6.3, n=8)

Classification: Martian; olivine-phyric shergottite

Data from:
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021 May
Mass (g):146
Class:Martian (shergottite)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):41.9; 57.8
Ferrosilite (mol%):29.5
Wollastonite (mol%):17.8
Classifier:A. Greshake, MNB
Type spec mass (g):22.4
Type spec location:MNB
Main mass:Salamu Ali
Comments:Submitted by Ansgar Greshake
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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
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     This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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