Meteoritical Bulletin: Entry for Northwest Africa 15433

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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: 636 g

Classification
history:

Recommended:

Lunar (feldsp. breccia) [explanation]

This is 1 of 315 approved meteorites classified as Lunar (feldsp. breccia). [show all]
Search for other: Lunar meteorites

Comments:

Approved 19 Nov 2022

Writeup

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: Fa_45.9±4.2(Fa_41.0-56.5); mean Fe/Mn (at.): 106; n=12. Mean pyroxene composition: Fs_33.2±8.5Wo_19.1±11.9(Fs_13.6-46.1Wo_6.5-38.5); mean Fe/Mn (at.): 73; n=14. Mean plagioclase composition: An_96.2±0.9Or_0.0±0.1(An_94.9-97.5Or_0.0-0.1); 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:

Credit	Photos
Public domain photographs:
Knut Metzler

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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