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Northwest Africa 8594
Basic information Name: Northwest Africa 8594
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8594
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 138 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 218 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 30 Oct 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8594 (NWA 8594)

(Northwest Africa)

Purchased: 2014 Jan

Classification: HED achondrite (Eucrite, monomict)

History: Purchased by F. Kuntz in January 2014 from a dealer in Rissani, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Monomict breccia composed of ophitic-textured basaltic eucrite clasts and related debris. Pyroxenes are compositionally zoned; other minerals include calcic plagioclase, silica polymorph, ilmenite, troilite and stained Ni-free metal.

Geochemistry: Pigeonite (cores Fs33.9-35.2Wo7.1-5.0, FeO/MnO = 27-32; rims Fs 61.1-63.4Wo6.6-4.0, FeO/MnO =30), subcalcic augite (Fs46.9Wo25.6, FeO/MnO = 30), augite (Fs32.6Wo42.2, FeO/MnO = 34).

Classification: Eucrite (monomict breccia).

Specimens: 20.78 g including one polished thick section at PSF; main mass with Kuntz.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Rissani
Date:P 2014 Jan
Mass (g):138
Pieces:1
Class:Eucrite-mmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):core 33.9-35.2; rim 61.1-63.4
Wollastonite (mol%):7.1-5.0; 6.6-4.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.78
Type spec location:PSF
Main mass:F. Kuntz
Comments:K216; submitted by P. Sipiera
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mike Markowitz   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6916 approved meteorites from (Northwest Africa) (plus 2027 unapproved names)

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