Meteoritical Bulletin: Entry for Northwest Africa 15219

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Northwest Africa 15219

Basic information

Name: Northwest Africa 15219
This is an OFFICIAL meteorite name.
Abbreviation: NWA 15219
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass: 193 g

Classification
history:

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

This is 1 of 280 approved meteorites classified as Eucrite-mmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 5 Sep 2022

Writeup

help

Writeup from MB 111:

Northwest Africa 15219 (NWA 15219)

(Northwest Africa)

Purchased: 2022

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by S. Crivello and I. Pardini in 2022 from Mirko Graul. Reportedly found in Northwest Africa.

Petrography: (K. Metzler, IfP) Monomict breccia, consisting of basaltic lithic clasts with gabbroic textures and monomineralic fragments (pyroxene, plagioclase) set in a fine-grained matrix of related debris. The matrix partly represents a crystallized shock melt. Most pyroxenes exhibit augite exsolution lamellae. Accessories are a silica polymorph, Cr-spinel, and small amounts of ilmenite.

Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene (host): Fs_58.9±1.4Wo_3.4±1.2(Fs_57.6-61.4Wo_1.6-4.4); mean Fe/Mn (at.): 31.9; n=8. Ca-rich pyroxene (exsolution lamellae) Fs_26.4±0.7Wo_42.8±0.7(Fs_25.4-27.7Wo_41.4-43.7); n=7. Plagioclase An_88.9±1.9Or_0.3±0.3(An_86.2-92.0Or_0.0-0.8); n=9.

Classification: Brecciated eucrite (monomict), based on texture and mineral chemistry

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Germany
Date:	P 2022
Mass (g):	193
Pieces:	1
Class:	Eucrite-mmict
Shock stage:	high
Weathering grade:	moderate
Ferrosilite (mol%):	58.9±1.4; 26.4±0.7
Wollastonite (mol%):	3.4±1.2; 42.8±0.7
Classifier:	K. Metzler, IfP
Type spec mass (g):	20
Type spec location:	IfP
Main mass:	I. Pardini and S.Crivello, Genoa, Italy
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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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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