Meteoritical Bulletin: Entry for Northwest Africa 8256

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Northwest Africa 8256

Basic information

Name: Northwest Africa 8256
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8256
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 816 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	L5
Recommended:			L5 [explanation]

This is 1 of 7521 approved meteorites (plus 4 unapproved names) classified as L5. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 23 Feb 2015

Writeup

Writeup from MB 104:

Northwest Africa 8256 (NWA 8256)

(Northwest Africa)

Purchased: 2013

Classification: Ordinary chondrite (L5)

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

Physical characteristics: A single brown stone (816 g) lacking fusion crust.

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

Geochemistry: Olivine (Fa_24.8-25.4), orthopyroxene (Fs_20.5-20.8Wo_1.2-1.7), clinopyroxene (Fs_7.3-7.4Wo_46.2-44.6).

Classification: Ordinary chondrite (L5).

Specimens: 44.1 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
Mass (g):	816
Pieces:	1
Class:	L5
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	24.8-25.4
Ferrosilite (mol%):	20.5-20.8
Wollastonite (mol%):	1.2-1.7
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	44.1
Type spec location:	BajaAO
Main mass:	Z. Kereszty
Comments:	ZK14-2; 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:

Credit	Photos
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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