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

This is 1 of 288 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 Meteoritical Bulletin, no. 111, in preparation (2022)
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler      
Geography: 
Coordinates:Unknown.

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

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