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Northwest Africa 13879
Basic information Name: Northwest Africa 13879
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13879
Observed fall: No
Year found: 2021
Country: Morocco
Mass:help 1930 g
Classification
  history:
Recommended:  CVred3    [explanation]

This is 1 of 12 approved meteorites classified as CVred3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 17 Jul 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13879 (NWA 13879)

Morocco

Purchased: 2021

Classification: Carbonaceous chondrite (CVred3)

History: (C. Muñecas, Expometeoritos) A batch consisting of 13 pieces of various sizes was found by a nomad in a place in northwest Africa of unknown coordinates. All meteorites were purchased by Carlos Muñecas in Errachidia. Meteorites have different sizes ranging from a few grams to the main mass of 448 g.

Physical characteristics: Samples have dark gray-brown exteriors and are ellipsoidal in shape. The cut face shows the interior has a chondritic texture composed of abundant dark and light-colored, ellipsoidal chondrules and CAIs (that define a preferred orientation) set within a dark colored matrix with sulfides.

Petrography: Description and classification (A. Love, App) Sample shows chondritic texture with a prominent alignment of flattened chondrules (aspect ratio 1.3±0.2, pre-deformed avg diam. 653 µm, n=30) and CAIs set in 29 vol% opaque matrix. Isotropic glass is rare. Additional minerals are: chromite, fine-grained FeNi metal often associated with troilite, magnetite, and rare phosphates.

Geochemistry: Olivine (Fa11.9±14.5 (Fa0.4-40.5), Fe/Mn=42.6±32.2, n=14); low-Ca pyroxene (Fs1.4±1.0 Wo2.0±0.3 (Fs0.7-3.6Wo0.6-2.3), n=8); Sulfides contain 0.16±0.14 wt% Ni, n=12.

Classification: Carbonaceous chondrite (CVred3). Based on textures, mineral compositions, magnetic susceptibility and lack of Ni in sulfides, sample is a reduced CV3.

Specimens: Carlos Muñecas (Expometeoritos) holds the 448 g main mass. A polished thin section and a 35.09 g endcut are on deposit at App.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Errachidia
Date:P 2021
Mass (g):1930
Pieces:13
Class:CVred3
Shock stage:low
Weathering grade:low
Fayalite (mol%):11.9±14.5
Ferrosilite (mol%):1.4±1.0
Wollastonite (mol%):2.0±0.3
Magnetic suscept.:4.22
Classifier:A. Love, App
Type spec mass (g):35.09
Type spec location:App
Main mass:Carlos Muñecas (Expometeoritos)
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Anthony Love      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1670 approved meteorites from Morocco (plus 23 unapproved names) (plus 1 impact crater)

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