Meteoritical Bulletin: Entry for Northwest Africa 5582

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Northwest Africa 5582

Basic information

Name: Northwest Africa 5582
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5582
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass: 411 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 598 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 3 Dec 2014

Writeup

Writeup from MB 103:

Northwest Africa 5582 (NWA 5582)

(Northwest Africa)

Purchased: 2008

Classification: HED achondrite (Eucrite)

Petrography: The eucrite is a fine-grained breccia with lithic and mineral fragments set into a cataclastic matrix. Basaltic fragments dominate over melt clasts; mineral clasts are plagioclase and exsolved pyroxene. Minor phases include chromite and SiO₂ polymorphs. Pyroxene show pronounced undulatory extinction due to shock.

Geochemistry: low-Ca pyroxene: Fs_54.9±1.2Wo_5.2±1.5(Fs_52.7-57Wo_3.3-8.1, FeO/MnO=31-37, n=16); Ca-pyroxene: Fs_27.9±2.9Wo_38±2.3(Fs_23.2-32-4Wo_34.5-41.9, FeO/MnO=32-36, n=15); calcic plagioclase: An_87.8±0.8(An_86.1-89.1, n=20)

Data from:
  MB103
  Table 0
  Line 0:

Place of purchase:	Agadir, Morocco
Date:	P 2008
Mass (g):	411
Pieces:	1
Class:	Eucrite
Shock stage:	low
Weathering grade:	moderate
Classifier:	A. Greshake, MNB
Type spec mass (g):	22.4
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 Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Gregor H.

Geography:

Coordinates:

Unknown.

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