header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 30 Nov 2019
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 6834
Basic information Name: Northwest Africa 6834
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6834
Observed fall: No
Year found: 2010
Country: (Northwest Africa)
Mass:help 285 g
Classification
  history:
Recommended:  H7    [explanation]

This is 1 of 21 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 Oct 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 6834 (NWA 6834)

(Northwest Africa)

Purchased: 2010

Classification: Ordinary chondrite (H7)

History: The meteorite was purchased from a local meteorite dealer in Erfoud, Morocco.

Physical characteristics: Brownish fragment without fusion crust.

Petrography: The meteorite displays a completely recrystallized texture of dominantly olivine and orthopyroxene grains, the latter with relativey high Wo-contents. 120 degree triple junctions are present. Plagioclase grains are up to 100 μm in size. No chondrules observed. Abundant Fe,Ni metal and troilite.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2010
Mass (g):285
Pieces:1
Class:H7
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):19.2±0.1 (n=10)
Ferrosilite (mol%):17.0±0.1 (n=11)
Wollastonite (mol%):3.7±0.3 (n=11)
Classifier:A. Greshake, MNB
Type spec mass (g):21.6
Type spec location:MNB
Main mass:Hanno Strufe
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. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

Direct link to this page