header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 23 Jan 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 6705
Basic information Name: Northwest Africa 6705
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6705
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 1003 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Angrite
Recommended:  Angrite    [explanation]

This is 1 of 35 approved meteorites classified as Angrite.   [show all]
Search for other: Achondrites, Angrites
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 6705 (NWA 6705)

(Northwest Africa)

Purchased: 2011 Mar

Classification: Angrite

Petrography: (A. Irving and S. Kuehner, UWS) Metamorphic texture. Olivine (FeO/MnO = 81-87) occurs as polycrystalline aggregates of polygonal grains with Al-Ti-rich clinopyroxene (pinkish in thin section; FeO/MnO = 82-90), kamacite, Cr-Al spinel (purplish-brown in thin section), troilite and rare pure anorthite (as thin coronas around spinel grains in contact with clinopyroxene). Other portions of this specimen contain angular anorthite clasts. Minor goethite from terrestrial weathering of metal is present on grain boundaries. This specimen is paired with NWA 2999, 3158, 3164, 4569, 4662, 4877, 4931 and 6291.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2011 Mar
Mass (g):1003
Pieces:1
Class:Angrite
Shock stage:low
Weathering grade:low
Fayalite (mol%):39.3±0.0, n=3
Ferrosilite (mol%):11.1-12.1, n=3
Wollastonite (mol%):52.2-52.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20
Type spec location:UWB
Main mass:GHupé
Comments:GH-394; paired with NWA 2999; submitted by A. Irving
Institutions
   and collections		 UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7552 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

Direct link to this page