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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:help 411 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 443 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 3 Dec 2014
Writeuphelp
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: Fs54.9±1.2Wo5.2±1.5 (Fs52.7-57Wo3.3-8.1, FeO/MnO=31-37, n=16); Ca-pyroxene: Fs27.9±2.9Wo38±2.3 (Fs23.2-32-4Wo34.5-41.9, FeO/MnO=32-36, n=15); calcic plagioclase: An87.8±0.8 (An86.1-89.1, 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 f├╝r Naturkunde, Invalidenstra├če 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:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Arthur Rosen   
Gregor H.   
Jean-Michel Masson   
Jim K   
Michael Hofmann   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7027 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

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