Meteoritical Bulletin: Entry for Northwest Africa 8594

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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: 138 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	Eucrite-mmict
Recommended:			Eucrite-mmict [explanation]

This is 1 of 293 approved meteorites classified as Eucrite-mmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 30 Oct 2014

Writeup

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 Fs_33.9-35.2Wo_7.1-5.0, FeO/MnO = 27-32; rims Fs_61.1-63.4Wo_6.6-4.0, FeO/MnO =30), subcalcic augite (Fs_46.9Wo_25.6, FeO/MnO = 30), augite (Fs_32.6Wo_42.2, 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:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Mike Markowitz
Ryan Upchurch
Wojciech Moscinski

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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