Meteoritical Bulletin: Entry for Northwest Africa 5584

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Northwest Africa 5584

Basic information

Name: Northwest Africa 5584
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5584
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass: 116 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	R3
Recommended:			R3 [explanation]

This is 1 of 77 approved meteorites classified as R3. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)

Comments:

Approved 19 Mar 2022

Writeup

Writeup from MB 111:

Northwest Africa 5584 (NWA 5584)

(Northwest Africa)

Purchased: 2008

Classification: Rumuruti chondrite (R3)

History: The meteorite was purchased from a local meteorite dealer in Agadir, Morocco.

Physical characteristics: Three brownish fragments without fusion crust.

Petrography: The meteorite shows an unbrecciated dark brownish interior with well defined partly flattened chondrules (mean diameter about 400 µm) and individual mineral fragments in a matrix dominated by Fe-rich olivine. Olivine and low-Ca-pyroxene ae frequently compositionally zoned. Minor phases are Ca-pyroxene, sodic plagioclase, chromite, and sulfides; no metal detected.

Geochemistry: olivine: Fa_23.3±16.1(Fa_0.6-36.4, n=21); low-Ca pyroxene: Fs_18.5±6.9Wo_0.7±0.4(Fs_10.2-28.9Wo_0.2-1.2, n=11); Ca-pyroxene: Fs_5.7±0.6Wo_37.6±1.9(Fs_4.9-6.7Wo_35.2-39.4, n=5)

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Agadir, Morocco
Date:	P 2008
Mass (g):	116
Pieces:	3
Class:	R3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	23.3
Ferrosilite (mol%):	18.5; 5.7
Wollastonite (mol%):	0.7; 37.6
Classifier:	A. Greshake, MNB
Type spec mass (g):	21.5
Type spec location:	MNB
Main mass:	Carsten Giessler
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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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Jean-Michel Masson
Solar Anamnesis

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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