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Northwest Africa 14076
Basic information Name: Northwest Africa 14076
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14076
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 225 g
Classification
  history:
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
Writeuphelp
Writeup from MB 110:

Northwest Africa 14076 (NWA 14076)

(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) Relatively fine-grained breccia containing sparse subophitic eucrite clasts, but dominated by related crystalline debris, set in a fine grained matrix. Accessory phases are silica polymorph, chromite, troilite and ilmenite.

Geochemistry: Low-Ca pyroxene host (Fs58.0-59.4Wo1.5-3.0, FeO/MnO = 31-33, N = 11), augite exsolution lamellae (Fs24.4-30.0Wo44.1-37.4, FeO/MnO = 28-31, N = 6), plagioclase (An74.2-90.1Or0.2-0.9, N = 3).

Classification: Eucrite (monomict breccia).

Specimens: 21.5 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Jan
Mass (g):225
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):58.0-59.4; 24.4-30.0
Wollastonite (mol%):1.5-3.0; 44.1-37.4
Classifier:A. Irving, UWS, and J. Boesenberg, Brown U.
Type spec mass (g):21.5
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-11; submitted by A. Irving
Institutions
   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)
Catalogs:
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
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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