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Northwest Africa 13778
Basic information Name: Northwest Africa 13778
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13778
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 620 g
Classification
  history:
Recommended:  CVox3    [explanation]

This is 1 of 6 approved meteorites classified as CVox3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 8 Apr 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 13778 (NWA 13778)

(Northwest Africa)

Purchased: 2021

Classification: Carbonaceous chondrite (CVox3)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania, in early 2021.

Physical characteristics: Dark brownish oriented stone with some fusion crust.

Petrography: Carbonaceous chondrite composed of large, well-defined chondrules (mean diameter about 1 mm; up to 3 mm sized), up to 4 mm sized CAIs, and olivine amoeboids embedded into a fine-grained brownish-black matrix. Contains both, type I and type II chondrules. Opaque phases are metal and sulfides.

Geochemistry: Ni in sulfides 18.3±0.3 wt%, N=10.

Classification: Carbonaceous chondrite (CVox3). Oxidized subgroup based on high concentrations of Ni in sulfides (Gattacceca et al., 2020).

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:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2021
Mass (g):620
Pieces:1
Class:CVox3
Shock stage:S1
Weathering grade:low
Fayalite (mol%):11.5±13.7 (0.3-43.8, n=18)
Ferrosilite (mol%):1.7±1.1 (1.1-4.7, n=12)
Wollastonite (mol%):1.8±0.7 (1.2-3.2, n=12)
Classifier:A. Greshake, MNB
Type spec mass (g):21.6
Type spec location:MNB
Main mass:Salamu Ali
Finder:anonymous
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7741 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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