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Northwest Africa 8255
Basic information Name: Northwest Africa 8255
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8255
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 1248 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  H5
Recommended:  H5    [explanation]

This is 1 of 10614 approved meteorites (plus 19 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Feb 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8255 (NWA 8255)

(Northwest Africa)

Purchased: 2013 Nov

Classification: Ordinary chondrite (H5)

History: Purchased by Zsolt Kereszty in November 2013 from a Moroccan dealer.

Physical characteristics: A single brown stone (1248 g) with weathered fusion crust on one side.

Petrography: (A. Irving and S. Kuehner, UWS) Sparse chondrules and fairly abundant altered metal. Composed of olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, troilite and altered kamacite.

Geochemistry: Olivine (Fa19.1-19.4), orthopyroxene (Fs16.1-16.6Wo0.6-0.5), clinopyroxene (Fs7.1-8.8Wo42.1-40.0).

Classification: Ordinary chondrite (H5).

Specimens: 41.8 g including one polished thin section at BajaAO. The main mass is held by Mr. Z. Kereszty.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013 Nov
Mass (g):1248
Pieces:1
Class:H5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):18.1-19.4
Ferrosilite (mol%):16.1-16.6
Wollastonite (mol%):0.6-0.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):41.8
Type spec location:BajaAO
Main mass:Z. Kereszty
Comments:ZK14-1; submitted by T. Hegedus
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BajaAO: Baja Astronomical Observatory H-6500 Baja, Szegedi ut KT. 766, Hungary; Website (institutional address; updated 3 Oct 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Zsolt Kereszty   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8037 approved meteorites from (Northwest Africa) (plus 1947 unapproved names)

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