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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
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
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:
  Table 0
  Line 0:
Origin or pseudonym:Sahara Desert
Place of purchase:Escondido, CA
Date:P 1 April 2021
Mass (g):42.6
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
   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)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Public domain photographs:
Daniel Sheikh      

     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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