Meteoritical Bulletin: Entry for Northwest Africa 10562

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Northwest Africa 10562

Basic information

Name: Northwest Africa 10562
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10562
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 1180 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 451 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 26 Mar 2016

Writeup

help

Writeup from MB 105:

Northwest Africa 10562 (NWA 10562)

(Northwest Africa)

Purchased: 2015 Nov

Classification: HED achondrite (Howardite)

History: Purchased by Bob Falls in November 2015 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia consisting mainly of eucritic mineral debris plus some ophitic-textured eucrite clasts, plus some very fine grained granulitic clasts and ~15 vol.% of large grains (up to 3 mm across) of diogenitic orthopyroxene (with undulose extinction). Other minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, olivine, ilmenite, Ti-free chromite, troilite and Ni-poor kamacite.

Geochemistry: Diogenitic orthopyroxene (Fs_25.1-25.2Wo_1.6-3.2, FeO/MnO = 26-31, N = 3), olivine (Fa_37.8-55.2, FeO/MnO = 48-50, N = 2), orthopyroxene host (Fs_57.9-59.9Wo_4.3-3.8, FeO/MnO = 27-30, N = 3), clinopyroxene exsolution lamellae (Fs_26.6-30.3Wo_42.4-39.9, FeO/MnO = 31-33, N = 3).

Classification: Howardite.

Specimens: 29.1 g including one polished thin section at UWB; remainder with Mr. R. Falls.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Zagora
Date:	P 2015 Nov
Mass (g):	1180.2
Pieces:	1
Class:	Howardite
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	37.8-55.2
Ferrosilite (mol%):	25.1-25.2; 57.9-59.9; 26.6-30.3
Wollastonite (mol%):	1.6-3.2; 4.3-3.8; 42.4-39.9
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	29.1
Type spec location:	UWB
Main mass:	R. Falls
Comments:	BF15-6; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Rock Falls Designs

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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