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Northwest Africa 15433
Basic information Name: Northwest Africa 15433
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15433
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 636 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  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 19 Nov 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15433 (NWA 15433)

(Northwest Africa)

Purchased: 2022 Jun

Classification: Lunar meteorite (feldspathic breccia)

Petrography: (K. Metzler, IfP) Achondritic breccia, consisting of mineral fragments (mainly pyroxene, olivine, and plagioclase) and subrounded lithic clasts up to ~1 cm (microgabbros and impact melt rock units), set in a compacted fine-grained matrix of related material. Impact melt spherules occur. Accessories are ilmenite, troilite, and Ni-bearing metal.

Geochemistry: Mineral compositions and geochemistry: Mean olivine composition: Fa45.9±4.2 (Fa41.0-56.5); mean Fe/Mn (at.): 106; n=12. Mean pyroxene composition: Fs33.2±8.5 Wo19.1±11.9 (Fs13.6-46.1Wo6.5-38.5); mean Fe/Mn (at.): 73; n=14. Mean plagioclase composition: An96.2±0.9 Or0.0±0.1 (An94.9-97.5Or0.0-0.1); n=11.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2022 Jun
Mass (g):636
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:High
Weathering grade:Low
Fayalite (mol%):45.9±4.2
Ferrosilite (mol%):33.2±8.5
Wollastonite (mol%):19.1±11.9
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Space Rocks Eger, Bochum, Germany
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
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. ?
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler      
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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