header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 19 Sep 2020
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:
Include past classifications in search
Limit to approved meteorite names
Search text:  
Northwest Africa 7006
Basic information Name: Northwest Africa 7006
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7006
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 335 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  CO3
Recommended:  CO3    [explanation]

This is 1 of 554 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 6 Sep 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7006 (NWA 7006)

Northwest Africa

Purchased: 2011 Sep

Classification: Carbonaceous chondrite (CO3)

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed small (most below 0.3 mm) chondrules, olivine and orthopyroxene mineral fragments and rare CAI in a reddish-brown matrix containing minor clinopyroxene, kamacite and troilite.

Geochemistry: Olivine (Fa0.4-38.6; Cr2O3 contents in ferroan olivine 0.02-0.04 wt.%, mean 0.03, s.d. 0.01, N = 5 ), orthopyroxene (Fs4.2-5.7Wo0.8-0.4), clinopyroxene (Fs1.4Wo37.0; Fs1.0Wo42.6).

Classification: Carbonaceous chondrite (CO3.6). Subtype estimated to be 3.6 based on Cr2O3 range in ferroan olivine. Estimation of subtype based on histograms (Fig. 5) in Grossman and Brearley (2005).

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Taliouine
Date:P 2011 Sep
Mass (g):335
Pieces:1
Class:CO3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.4-38.6, n=7
Ferrosilite (mol%):4.2-5.7
Wollastonite (mol%):0.8-0.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):30.6
Type spec location:UWB
Main mass:J. Higgins
Comments:JH11-7; 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)
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 7374 approved meteorites from (Northwest Africa) (plus 1957 unapproved names)

Direct link to this page