Meteoritical Bulletin: Entry for Northwest Africa 10444

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Northwest Africa 10444

Basic information

Name: Northwest Africa 10444
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10444
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 133.6 g

Classification
history:

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

This is 1 of 453 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 31 Dec 2015

Writeup

help

Writeup from MB 104:

Northwest Africa 10444 (NWA 10444)

(Northwest Africa)

Purchased: 2015 May

Classification: HED achondrite (Howardite)

History: Purchased by Fabien Kuntz in May 2015 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh fragmental breccia containing some basaltic eucrite clasts but mostly composed of related mineral fragments plus some diogenitic orthopyroxene (~12 vol.%). Minerals include calcic plagioclase, exsolved pigeonite, fayalite, Ti-Al-chromite, troilite and ilmenite (some in intergrowths with Ni-free metal, troilite and silica polymorph).

Geochemistry: Orthopyroxene host (Fs_61.0Wo_3.3, FeO/MnO = 30), augite exsolution lamella (Fs_28.3Wo_42.4, FeO/MnO = 29), augite host (Fs_30.5Wo_39.8, FeO/MnO = 30), low-Ca pyroxene exsolution lamella (Fs_56.4Wo_7.7, FeO/MnO = 29), diogenitic orthopyroxene (Fs_27.9Wo_3.6; Fs_42.4Wo_1.9; FeO/MnO = 30-31, N = 2), fayalitic olivine (Fa_70.8-72.7, FeO/MnO = 44-45, N = 2).

Classification: Howardite.

Specimens: 21.72 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2015 May
Mass (g):	133.59
Pieces:	1
Class:	Howardite
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	70.8-72.7
Ferrosilite (mol%):	56.4-61.0; 28.3-30.5
Wollastonite (mol%):	7.7-3.3; 42.4-39.8
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	21.72
Type spec location:	PSF
Main mass:	F. Kuntz
Comments:	K263; submitted by A. Irving

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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/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)
Solar Anamnesis

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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