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Northwest Africa 15014
Basic information Name: Northwest Africa 15014
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15014
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 213 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 459 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 6 Aug 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15014 (NWA 15014)

(Northwest Africa)

Purchased: Mar 2022

Classification: HED achondrite (Howardite)

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

Physical characteristics: Many grayish fragments without fusion crust.

Petrography: The meteorite is a polymict breccia composed of lithic and mineral clasts set into a fine-grained clastic matrix. Lithic clasts are basaltic and dark impact melt clast up to 2 mm in size. Main minerals are up to 1 mm sized orthopyroxene with diogenitic composition (about 25%), compositionally zoned low-Ca pyroxene, exsolved pyroxene and calcic plagioclase. Minor phases include silica, chromite, and FeS. No metallic iron detected.

Geochemistry: low-Ca pyroxene: Fs60.3±4.0Wo3.4±1.0 (Fs54.4-63.8Wo2.3-5.1, FeO/MnO=30-32, n=10); augite exsolution lamellae: Fs20.9±0.2Wo42.2±0.2 (Fs20.4-21.1Wo41.8-42.6, FeO/MnO=21-24, n=10); diogenetic pyroxene: Fs26.5±0.2Wo2.4±0.1 (Fs26.1-26.8Wo2.2-2.6, FeO/MnO=26-28, n=10); zoned pyroxene: Fs45.0±11.0Wo14.5±8.6 (Fs34.4-64.1Wo5.8-25.2, FeO/MnO=26-32, n=10); calcic plagioclase: An94.0±1.5 (An91.5-96.0, n=10)

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P Mar 2022
Mass (g):213
Pieces:many
Class:Howardite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):60.3; 20.9; 26.5; 45.0
Wollastonite (mol%):3.4; 42.2; 2.4; 14.5
Classifier:A. Greshake, MNB
Type spec mass (g):24.7
Type spec location:MNB
Main mass:Hanno Strufe and Andreas Grönemeyer
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. 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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