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Northwest Africa 14415
Basic information Name: Northwest Africa 14415
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14415
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 3.8 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 334 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14415 (NWA 14415)

(Northwest Africa)

Purchased: 2020

Classification: Lunar meteorite (feldspathic breccia)

History: The meteorite was purchased from a dealer in Algeria.

Physical characteristics: Dark grayish fragment without fusion crust.

Petrography: Fine-grained fragmental breccia composed of mineral fragments, basaltic, and gabbroic clasts set in a fine-grained partly shock-melted feldspathic groundmass. Predominant minerals are calcic plagioclase, olivine, zoned low-Ca-pyroxene, and augite. Minor phases include ilmenite, apatite, and FeS.

Geochemistry: olivine: Fa39.5±0.3 (Fa38.7-39.9, FeO/MnO=101±11, n=15); zoned low-Ca pyroxene: Fs23.9±6.4Wo5.5±1.6 (Fs18.1-34.5Wo3.9-8.0, FeO/MnO=55±7, n=12); augite: Fs17.1±0.7Wo43.3±0.9 (Fs16.5-18.7Wo41.2-44.0, FeO/MnO=50±8, n=8); calcic plagioclase: An96.5±0.5 (An95.7-97.2, n=11)

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2020
Mass (g):3.8
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):39.5
Ferrosilite (mol%):23.9; 17.1
Wollastonite (mol%):5.5; 43.3
Classifier:A. Greshake, MNB
Type spec mass (g):0.8
Type spec location:MNB
Main mass:Mateusz Szyszka
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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