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Northwest Africa 14933
Basic information Name: Northwest Africa 14933
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14933
Observed fall: No
Year found: 2022
Country: Algeria
Mass:help 800 g
Classification
  history:
Recommended:  CVred3    [explanation]

This is 1 of 17 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 25 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14933 (NWA 14933)

Algeria

Purchased: 2022

Classification: Carbonaceous chondrite (CVred3)

History: 25 small fragments totaling 800 g were purchased by Carlos Muñecas (Expometeoritos) from a meteorite dealer in Ouargla, Algeria, in May 2022

Physical characteristics: Samples are irregularly shaped, dark brown and show numerous chondrules on the exterior. The cut face shows the interior contains abundant chondrules and CAIs.

Petrography: Description and classification (A. Love, App) Sample contains abundant well-formed chondrules (avg. dia. 1028 um, n=17) and CAIs set within an opaque fine-grained matrix (~46 vol%). Additional minerals are: FeNi metal, magnetite, troilite, chromite and FeOH minerals.

Geochemistry: (A. Love, App) Olivine (Fa7.0±11.1, Fe/Mn=11.9-163.5, n=19); low Ca pyroxene (Fs1.2±0.5Wo1.0±0.3, n=6); high Ca pyroxene (Fs1.7Wo31.6, n=1); Ni content (wt%) in sulfides=0.06±0.0, n=3.

Classification: Carbonaceous chondrite (CV3 reduced). Sample is a CV3 based on mineral compositions, chondrule diameters, abundance of matrix and presence of CAIs. Based on magnetic susceptibility and Ni content of sulfides sample belongs to the reduced CV3 subgroup Gattacceca et al., 2020.

Specimens: Carlos Muñecas holds the 50 g main mass. A polished thin section and 23.7 3 g of small individuals are on deposit at App.

Bibliography:
  • Gattacceca J.,Bonal L.,Sonzognia C., and Longereya J. (2020) CV chondrites: More than one parent body. Earth Planet. Sci. Letts. 547, 116467. (link)
Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Oargla
Date:P 2022
Mass (g):800
Pieces:many
Class:CVred3
Shock stage:low
Weathering grade:low
Fayalite (mol%):7.0±11.1
Ferrosilite (mol%):1.2±0.5; 1.7
Wollastonite (mol%):1.0±0.3; 31.6
Magnetic suscept.:4.29
Classifier:A. Love, App
Type spec mass (g):23.73
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. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1194 approved meteorites from Algeria (plus 28 unapproved names) (plus 4 impact craters)

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