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Northwest Africa 14869
Basic information Name: Northwest Africa 14869
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14869
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 42 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Diogenite-melt breccia
Recommended:  Diogenite-melt breccia    [explanation]

This is 1 of 10 approved meteorites classified as Diogenite-melt breccia.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14869 (NWA 14869)

(Northwest Africa)

Purchased: 2022 Jan

Classification: HED achondrite (Diogenite, melt breccia)

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

Physical characteristics: Many small light brownish fragments some of which with minor fusion crust.

Petrography: Achondritic melt breccia predominantly composed of up to 3 mm sized zoned low Ca-pyroxene plus less abundant magnesian low-Ca pyroxene, olivine, and calcic plagioclase set in recrystalized melt rock matrix dominated by zoned pyroxene and lath-shaped feldspar grains. Minor phases include troilite and Ti-poor chromite. Pyroxene of eucritic composition is absent.

Geochemistry: zoned low-Ca pyroxene: Fs28.2±6.9Wo2.8±0.9 (Fs23.0-39.7Wo2.1-4.3, FeO/MnO=24-30, n=6); magnesian low-Ca pyroxene: Fs15.4±1.8Wo0.6±0.3 (Fs13.4-18.3Wo0.2-1.0, FeO/MnO=21-26, n=6); olivine: Fa39.0±0.1 (Fa38.9-39.2, FeO/MnO=44±2, n=7); magnesian olivine: Fa15.2±0.2, (Fa14.8-15.5, FeO/MnO=43±3, n=7); plagioclase: An91.9±0.5 (An91.2-92.7, n=7)

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Talsint, Morocco
Date:P 2022 Jan
Mass (g):42
Pieces:many
Class:Diogenite-melt breccia
Shock stage:S1
Weathering grade:moderate
Fayalite (mol%):39.0; 15.2
Ferrosilite (mol%):28.2; 15.4
Wollastonite (mol%):2.8; 0.6
Classifier:A. Greshake, MNB
Type spec mass (g):9.8
Type spec location:MNB
Main mass:Noreddine Azelmat
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:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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