Meteoritical Bulletin: Entry for Northwest Africa 4019

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Northwest Africa 4019

Basic information

Name: Northwest Africa 4019
This is an OFFICIAL meteorite name.
Abbreviation: NWA 4019
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass: 505 g

Classification
history:

Meteoritical Bulletin:	MB 90	(2006)	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 3 Feb 2006
Revised 9 Sep 2006: Update classification

Writeup

Writeup from MB 90:

Northwest Africa 4019

Northwest Africa

Find: 2005

Achondrite (eucrite, polymict)

History: A single stone of 504.7 g partly covered with fusion crust was found in 2005 in the western part of the Sahara in Morocco.

Petrography: (A. Greshake, MNB) A polymict breccia dominated by large basaltic clasts set into a fine-grained groundmass with rare melt clasts and large mineral fragments, the latter being mostly plagioclase and exsolved Ca pyroxene. Minor phases include silica and ilmenite.

Geochemistry: Plagioclase (An_74.1–90.7), pyroxene (Fs_41.6–65.4Wo_2.9–29.3).

Classification: Achondrite (eucrite, polymict); low shock, minimal weathering.

Specimens: A 22 g type specimen and one polished thin section are on deposit at MNB. HSSH-Pirmasens of Germany holds the main mass.

Data from:
  MB90
  Table 2
  Line 241:

Place of purchase:	Morocco
Date:	2005
Mass (g):	504.7
Pieces:	1
Class:	Euc
Shock stage:	Low
Weathering grade:	minimal
Type spec mass (g):	22

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. 90, MAPS 41, 1383-1418 (2006)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Hanno Strufe

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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