Meteoritical Bulletin: Entry for Northwest Africa 14511

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Northwest Africa 14511

Basic information

Name: Northwest Africa 14511
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14511
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass: 42.6 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	CO3
Recommended:			CO3 [explanation]

This is 1 of 645 approved meteorites (plus 1 unapproved name) classified as CO3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Approved 15 Dec 2021

Writeup

help

Writeup from MB 110:

Northwest Africa 14511 (NWA 14511)

(Northwest Africa)

Purchased: 1 April 2021

Classification: Carbonaceous chondrite (CO3)

History: An importer of Moroccan meteorites brought a collection of stones to Robert Verish for classification.

Physical characteristics: A single thumb-sized pebble, more gray than brown, 50% covered with a smooth, relict fusion-crust (also more gray than brown). A cut surface revealed minute metal-grains and small chondrules, and many were more darker than the gray matrix.

Petrography: (D. Sheikh, Cascadia) Sample is a chondrite composed of small chondrules (~230±100 µm, predominantly POP-textured), refractory inclusions (both CAIs and AOAs), and isolated mineral fragments set within a dark, fine-grained matrix (~50 vol. %).

Geochemistry: Olivine (Fa_29.5±12.1, range Fa_4.2-40.4, n=28), Low-Ca Pyroxene (Fs_11.3±5.3Wo_2.9±1.7, range Fs_2.2-27.6Wo_0.9-5.7, n=19).

Classification: Carbonaceous chondrite (CO3)

Specimens: 10.5 grams at UCLA, main mass with Verish

Data from:
  MB110
  Table 0
  Line 0:

Origin or pseudonym:	Sahara Desert
Place of purchase:	Escondido, CA
Date:	P 1 April 2021
Mass (g):	42.6
Pieces:	1
Class:	CO3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	29.5±12.1
Ferrosilite (mol%):	11.3±5.3
Wollastonite (mol%):	2.9±1.7
Classifier:	D. Sheikh, Cascadia
Type spec mass (g):	10.5
Type spec location:	UCLA
Main mass:	Verish
Comments:	Lab/thin-section ID: V-126; submitted by Daniel Sheikh

Institutions
and collections

Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Verish: Robert Verish, Meteorite-Recovery Lab, P.O. Box 463084, Escondido, CA 92046, United States; Website (private address; updated 27 May 2009)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Photos:

Credit	Photos
Public domain photographs:
Daniel Sheikh

Geography:

Coordinates:

Unknown.

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

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Revision
history:

This lists important revisions made to data for this record.

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