header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 4 Dec 2022
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
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 19 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 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:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Anthony Love      
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1904 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

Direct link to this page