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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:help 42.6 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 616 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
Writeuphelp
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 (Fa29.5±12.1, range Fa4.2-40.4, n=28), Low-Ca Pyroxene (Fs11.3±5.3Wo2.9±1.7, range Fs2.2-27.6Wo0.9-5.7, 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
Find references in NASA ADS:
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Photos:
CreditPhotos
Public domain photographs:
Daniel Sheikh      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8745 approved meteorites from (Northwest Africa) (plus 1880 unapproved names)

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