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Northwest Africa 14925
Basic information Name: Northwest Africa 14925
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14925
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 879 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 276 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 20 Jun 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14925 (NWA 14925)

(Northwest Africa)

Purchased: 2021 Oct

Classification: HED achondrite (Eucrite, monomict)

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

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Monomict breccia composed of subophitic eucrite clasts plus related crystalline debris in a fine grained matrix. Minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, ilmenite, troilite, chromite and Fe metal. Some thin, dark shock veinlets are present.

Geochemistry: Low-Ca pyroxene (Fs58.8-63.1Wo1.5-5.0, FeO/MnO = 29-32, N = 10), augite (Fs27.8-28.5Wo42.1-41.5, FeO/MnO = 29-32, N = 2), plagioclase (An 89.1-90.4Or0.4-0.3, N = 4).

Classification: Eucrite (subophitic, monomict breccia).

Specimens: 23.2 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Oct
Mass (g):879
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):58.9-63.1; 27.8-28.5
Wollastonite (mol%):1.5-5.0; 42.1-41.5
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):23.2
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-118; 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: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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