Meteoritical Bulletin: Entry for Northwest Africa 5903

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Northwest Africa 5903

Basic information

Name: Northwest Africa 5903
This is an OFFICIAL meteorite name.
Abbreviation: NWA 5903
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass: 266 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Eucrite-br
Recommended:			Eucrite-br [explanation]

This is 1 of 237 approved meteorites classified as Eucrite-br. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 23 Jul 2016

Writeup

Writeup from MB 105:

Northwest Africa 5903 (NWA 5903)

(Northwest Africa)

Purchased: 2008

Classification: HED achondrite (Eucrite, brecciated)

History: The meteorite was bought in 2008 from a Moroccan meteorite dealer on a mineral fair in Bruegg, Switzerland.

Petrography: The meteorite is a breccia consisting of fine- and more coarse-grained basaltic clasts set into a clastic groundmass of dominantly calcic plagioclase and exsolved pyroxene. Plagioclase grains are up to 1.5 mm in size. Minor phases are ilmenite, chromite and silica.

Geochemistry: low-Ca pyroxene: Fs_61.9±0.8Wo_2.1±0.9(Fs_60.3-62.9Wo_1.5-4.0, n=11, FeO/MnO=29-33); Ca-pyroxene: Fs_30.4±2.0Wo_40.4±2.3(Fs_27.4-33.4Wo_36.3-44.6, n=22, FeO/MnO=28-35); calcic plagioclase: An_90.1±0.8(An_89.0-91.8, n=23)

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Bruegg, Switzerland
Date:	P 2008
Mass (g):	266
Pieces:	1
Class:	Eucrite-br
Shock stage:	low
Weathering grade:	low
Ferrosilite (mol%):	61.9; 30.4
Wollastonite (mol%):	2.1; 40.4
Classifier:	A. Greshake, MNB
Type spec mass (g):	20.8
Type spec location:	MNB
Main mass:	Marc Jost
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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Sergey Vasiliev
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Solar Anamnesis
Space Jewels

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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