Meteoritical Bulletin: Entry for Northwest Africa 15152

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Northwest Africa 15152

Basic information

Name: Northwest Africa 15152
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15152
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 222 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 408 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 23 Jul 2022

Writeup

help

Writeup from MB 111:

Northwest Africa 15152 (NWA 15152)

(Northwest Africa)

Purchased: June, 2022

Classification: HED achondrite (Eucrite, polymict)

History: The meteorite was purchased on the Mineral and Gem Show in Sainte-Marie-aux-Mines, France.

Physical characteristics: Dark grayish rock with some fusion crust.

Petrography: The meteorite is a polymict breccia composed of up to 1.5 cm basaltic and black melt clasts plus up to 5 mm sized mineral fragments set in a more fine-grained clastic mineral matrix. Main minerals are exsolved pyroxene, compositionally zoned low-Ca pyroxene, and calcic plagioclase. Minor phases include silica, chromite, ilmenite, and FeS. No metal detected. Contains shock melt veins.

Geochemistry: low-Ca pyroxene host to exsolution lamellae: Fs_51.7±0.4Wo_12.5±0.1(Fs_51.3-51.7Wo_12.3-12.7, FeO/MnO=28-30, n=7); Ca-pyroxene exsolution lamellae: Fs_35.8±0.2Wo_34.0±0.2(Fs_35.3-36.0Wo_33.6-34.3, FeO/MnO=26-31, n=7); zoned low-Ca-pyroxene: Fs_34.8±13.2Wo_7.8±5.1(Fs_14.8-48.6Wo_0.9-14.4, FeO/MnO=26-32, n=7); calcic plagioclase: An_89.6±2.2(An_84.8-91.3, n=7).

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Sainte-Marie-aux-Mines, France
Date:	P June, 2022
Mass (g):	222.3
Pieces:	1
Class:	Eucrite-pmict
Shock stage:	high
Weathering grade:	low
Ferrosilite (mol%):	51.7; 35.8; 34.8
Wollastonite (mol%):	12.5; 34.0; 7.8
Classifier:	A. Greshake, MNB
Type spec mass (g):	24.9
Type spec location:	MNB
Main mass:	Hanno Strufe and Andreas Gruenemeyer
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. ?

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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