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Northwest Africa 14081
Basic information Name: Northwest Africa 14081
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14081
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 1555 g
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 272 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 6 Jul 2021
Writeup from MB 110:

Northwest Africa 14081 (NWA 14081)

(Northwest Africa)

Purchased: 2021 Jan

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by Jason Whitcomb in January 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Breccia composed predominantly of mildly-shocked microgabbroic eucrite clasts plus minor related crystalline debris in a sparse fine grained matrix. Major phases are exsolved pigeonite and calcic plagioclase (polycrystalline) together with accessory silica polymorph, chromite, fayalite, ilmenite and troilite.

Geochemistry: Low-Ca pyroxene host (Fs59.3-63.2Wo1.7-3.8, FeO/MnO = 28-31, N = 11), augite exsolution lamellae (Fs26.5-37.6Wo39.2-43.4, FeO/MnO = 28-31, N = 8), subcalcic augite (Fs43.5-44.2Wo 34.8-34.9, FeO/MnO = 37-39, N = 2), plagioclase (An88.0-90.3Or0.4-0.6, N = 4).

Classification: Eucrite (monomict breccia, microgabbroic).

Specimens: 23.8 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Jan
Mass (g):1555
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):59.3-63.2; 26.5-37.6
Wollastonite (mol%):1.7-3.8; 39.2-43.4
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):23.8
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-13; submitted by A. Irving
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
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 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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