header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 6 Oct 2021
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 12793
Basic information Name: Northwest Africa 12793
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12793
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 50 g
Classification
  history:
Recommended:  L6    [explanation]

This is 1 of 11584 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 21 Dec 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 12793 (NWA 12793)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (L6)

History: (Ziyao Wang) Purchased by Ziyao Wang from Fayssal Mezgouri at the mineral show in Chenzhou in May 2019

Physical characteristics: Flat brown stone of 50 g with recognizable tiny metallic spots on its surface

Petrography: (R. Bartoschewitz, Bart) Light-brown stained fractured recrystallized matrix with indistinct chondrules. Fractures are filled with hydroxides of the nearly complete oxidized metal and sulfide; beginning alteration of mafic silicates.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa23.4±0.4 (n=15); pyroxene Fs19.5±0.3Wo1.1±0.2 (n=6); mellillite. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 3.54

Classification: Ordinary chondrite (L6,W5)

Specimens: 12.3 g at Kiel on deposit, main mass with Bart.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Chenzhou
Date:P 2019
Mass (g):50
Pieces:1
Class:L6
Weathering grade:W5
Fayalite (mol%):23.4±0.4 (n=15)
Ferrosilite (mol%):19.5±0.3 (n=6)
Wollastonite (mol%):1.1±0.2
Magnetic suscept.:3.54
Classifier:R. Bartoschewitz
Type spec mass (g):12.3
Type spec location:Kiel
Main mass:R. Bartoschewitz
Finder:anonymous
Comments:working name WZD#10; submitted by R. Bartoschewitz
Institutions
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

Direct link to this page