Meteoritical Bulletin: Entry for Northwest Africa 5753

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Northwest Africa 5753

Basic information

Name: Northwest Africa 5753
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5753
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass: 377 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 7 Feb 2017

Writeup

Writeup from MB 106:

Northwest Africa 5753 (NWA 5753)

(Northwest Africa)

Purchased: 2008 Oct

Classification: HED achondrite (Howardite)

Petrography (K. Metzler, IfP): Fine-grained breccia, consisting of equilibrated eucrite clasts (subophitic to ophitic textures) and diogenitic pyroxene fragments (about 15 vol%), set in a fine-grained matrix of related debris. Melt rock clasts (clast-rich and clast-poor) occur and some shock veins are visible. Accessories are silica, ilmenite, chromite, iron sulfide and (mostly oxidized) metal.

Geochemistry: Mineral compositions and geochemistry: Eucrite clasts: Low-Ca pyroxene (n=20) Fs_45.9±9.0Wo_4.8±2.5(Fs_32-55Wo_1-10). High-Ca pyroxene (n=6) Fs_27.1±4.1Wo_36.4±5.3(Fs_22-34Wo_27-43). Diogenitic pyroxene (n=11) Fs_26.5±1.4(Fs_24-28). Plagioclase (n=10) An_87.8±4.4(An_80-94).

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Munich
Date:	P 2008 Oct
Mass (g):	377
Pieces:	1
Class:	Howardite
Shock stage:	moderate
Weathering grade:	high
Ferrosilite (mol%):	45.9; 27.1; 26.5
Wollastonite (mol%):	4.8; 36.4; 3.5
Classifier:	A. Bischoff, IfP
Type spec mass (g):	20
Type spec location:	IfP
Main mass:	anonymous
Comments:	Purchased from a moroccan dealer at the mineral show (Messe München) in Munich, Germany; 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., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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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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