Meteoritical Bulletin: Entry for Northwest Africa 11215

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Northwest Africa 11215

Basic information

Name: Northwest Africa 11215
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11215
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass: 15.69 kg

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	H4
Recommended:			H4 [explanation]

This is 1 of 6493 approved meteorites (plus 2 unapproved names) classified as H4. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 28 Mar 2017

Writeup

Writeup from MB 106:

Northwest Africa 11215 (NWA 11215)

(Northwest Africa)

Purchased: 2017-Feb

Classification: Ordinary chondrite (H4)

History: Purchased by Darryl Pitt in February 2017 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively small, well-formed chondrules occur in a recrystallized matrix containing abundant altered metal.

Geochemistry: Olivine (Fa_17.5-17.8, N = 3), orthopyroxene (Fs_15.2-16.3Wo_1.3-1.0, N = 3), clinopyroxene (Fs_5.6-7.3Wo_47.5-42.7, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 28.9 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Tucson
Date:	P 2017-Feb
Mass (g):	15685
Pieces:	1
Class:	H4
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	17.5-17.8
Ferrosilite (mol%):	15.2-16.3
Wollastonite (mol%):	1.3-1.0
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	28.9
Type spec location:	UWB
Main mass:	D. Pitt
Comments:	Work name MVCH 234; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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