Meteoritical Bulletin: Entry for Northwest Africa 10281

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Northwest Africa 10281

Basic information

Name: Northwest Africa 10281
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10281
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 765 g

Classification
history:

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

This is 1 of 298 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all]
Search for other: Martian meteorites

Comments:

Approved 3 Oct 2015

Writeup

Writeup from MB 104:

Northwest Africa 10281 (NWA 10281)

(Northwest Africa)

Purchased: 2015 Jun

Classification: Martian meteorite (Shergottite)

History: Purchased by Darryl Pitt in June 2015 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Intersertal texture. Composed predominantly of patchily-zoned clinopyroxene and maskelynite with accessory Cr-ulvöspinel, ilmenite, pyrrhotite and rare chlorapatite.

Geochemistry: High-Ca pyroxene (Fs_21.5-39.3Wo_35.3-26.2, FeO/MnO = 27-36, N = 4), low-Ca pyroxene (Fs_45.6-53.4Wo_9.5-12.2, FeO/MnO = 33-37, N = 4), maskelynite (An_50.9-56.3Or_1.8-1.0, N = 3).

Classification: Martian (shergottite, intersertal).

Specimens: 22.5 g including a polished thin section at UWB; the remainder is held by DPitt.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Zagora
Date:	P 2015 Jun
Mass (g):	765
Pieces:	1
Class:	Martian (shergottite)
Shock stage:	high
Weathering grade:	low
Ferrosilite (mol%):	45.6-53.4; 21.5-39.3
Wollastonite (mol%):	9.5-12.2; 35.3-26.2
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	22.5
Type spec location:	UWB
Main mass:	D. Pitt
Comments:	MAC 143; submitted by A. Irving

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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

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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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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