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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:
Recommended:  Howardite    [explanation]

This is 1 of 427 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 Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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