header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 7 May 2023
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 6734
Basic information Name: Northwest Africa 6734
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6734
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 50.3 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  EL6
Recommended:  EL6    [explanation]

This is 1 of 129 approved meteorites classified as EL6.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 5 Nov 2011
Writeuphelp
Writeup from MB 100:

Northwest Africa 6734 (NWA 6734)

(Northwest Africa)

Purchased: 2004

Classification: Enstatite chondrite (EL6)

History: The stone was purchased in Casablanca by a meteorite dealer in 2004.

Physical characteristics: (R. Bartoschewitz, Bart) One 50.3 g stone with deep fractures. Magnetic susceptibility log χ = 4.46 (χ in m3/kg × 10-9).

Petrography: (R. Bartoschewitz, Bart) The thin section show few poorly defined chondrules below 1 mm, pyroxene and some feldspar fragments set in a matrix of oxidized veins and a melt pool. Accessory minerals are kamacite, taenite, troilite, daubreelite and osbornite.

Geochemistry: (R. Bartoschewitz, Bart, and P. Appel and B. Mader Kiel) Pyroxene Fs0.06-1.06Wo1.3-1.5; feldspar An16Or4. Kamacite Ni = 6.0-6.3, Si=0.9-1.1Co = 0.5; taenite Ni = 21.4, Si=1.1, Co=0.3; troilite Ti=0.5-1.0, Cr=0.6-0.9; daubreelite Mn=2.3 (wt%).

Classification: Enstatite chondrite EL6 (W3)

Specimens: Main mass with Bart; type specimen, 10.6 g, Kiel.

Data from:
  MB100
  Table 1
  Line 1503:
Place of purchase:Casablanca
Date:P 2004
Mass (g):50.3
Pieces:1
Class:EL6
Weathering grade:W3
Ferrosilite (mol%):0.4 (0.1-1.1)
Wollastonite (mol%):1.3-1.4
Magnetic suscept.:4.46
Classifier:R. Bartoschewitz
Type spec mass (g):10.4
Type spec location:Kiel
Main mass:Bart
Finder:anonymous
Comments:Submitted by 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. 100, MAPS 49, E1-E101 (2014)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9092 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

Direct link to this page