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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:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 280 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 Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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