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Northwest Africa 12013
Basic information Name: Northwest Africa 12013
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12013
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 332 g
Meteoritical Bulletin:  MB 107  (2018)  CV3
Recommended:  CV3    [explanation]

This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 20 Oct 2018
Writeup from MB 107:

Northwest Africa 12013 (NWA 12013)

(Northwest Africa)

Purchased: 2018

Classification: Carbonaceous chondrite (CV3)

History: A single stone weighing 332.1 g was found in Morocco and subsequently purchased by Blaine Reed at the 2018 Tucson Gem and Mineral Show.

Physical characteristics: The stone is dark-orangish-brown in color, has a flattened ovoid shape, lacks fusion crust and has a weathered exterior with some chondrules protruding from the surface. The cut face showing the interior of the stone is dark greenish-brown and shows readily discernible dark-colored chondrules and irregular to circular dark-gray metallic grains.

Petrography: Description and classification (Anthony Love, App): Sample contains distinct chondrules (average diameter of 940 µm (N=24), fragments and refractory inclusions (CAIs up to 3 mm) all set within an opaque dark brown matrix. Matrix contains FeO-rich olivine, andradite, magnetite framboids and one prominent type B dark inclusion. Type I olivine chondrules are dominant (some of which contain isotropic glass). Sample has ~50% matrix.

Geochemistry: (A.Love-App) Type I chondrules Fa3.2±2.5 (Fa0.4-8.2), Fe/Mn=37.7±27.3 n=17; Type II chondrules Fa11.14, n=1 low-Ca pyroxene Fs1.1±0.3Wo1.8±1.8 (Fs0.7-1.5Wo0.7-5.0), n=4; high Ca pyroxene Fs1.4Wo26.9, n=1.

Classification: Carbonaceous Chondrite (CV3, S2, high weathering)

Specimens: Blaine Reed holds the main mass. Two sliced fragments weighing 42.38 g and one polished thin section are on deposit at App.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2018
Mass (g):332.1
Shock stage:S2
Weathering grade:high
Fayalite (mol%):3.2±2.5; 11.14
Ferrosilite (mol%):1.1±0.3
Wollastonite (mol%):1.8±1.8
Magnetic suscept.:4.35
Classifier:A. Love, App
Type spec mass (g):42.38
Type spec location:App
Main mass:Blaine Reed
Comments:Submitted by Anthony Love
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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