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Northwest Africa 5589
Basic information Name: Northwest Africa 5589
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5589
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 64.8 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 218 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Nov 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 5589 (NWA 5589)

(Northwest Africa)

Purchased: 2008

Classification: HED achondrite (Eucrite, brecciated)

History: The meteorite was bought from the Moroccan meteorite dealer Ismaily (Erfoud) at the mineral fair in Ste-Marie-aux-Mines, France.

Petrography: The rock displays a greyish to brownish interior and is composed of up to one cm sized basaltic clasts, melt fragments and mineral clasts set into a fine-grained clastic matrix. Dominant minerals in basaltic clasts and matrix are pyroxenes with fine exsolution lamellae and calcic plagioclase. Accessory phases include chromite, SiO2 polymorphs, and trolite.

Geochemistry: low-Ca pyroxene, Fs55.7±2Wo5.1±2.4 (Fs52-58.3Wo2.8-9.8, n=15, FeO/MnO=24-28); Ca-pyroxene, Fs27.3±1.2Wo41.6±1.7 (Fs25.5-29.6Wo37.3-43, n=15, FeO/MnO=23-28); calcic plagioclase, An79.5±11 (An68.4-91.9, n=10).

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Sainte-Marie-aux-Mines, France
Date:P 2008
Mass (g):64.8
Pieces:1
Class:Eucrite-br
Shock stage:moderate
Weathering grade:high
Ferrosilite (mol%):55.7; 27.3
Wollastonite (mol%):5.1; 41.6
Classifier:A. Greshake, MNB
Type spec mass (g):15
Type spec location:MNB
Main mass:Hanno Strufe
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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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