header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 14 Sep 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 6699
Basic information Name: Northwest Africa 6699
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 6699
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass:help 17.4 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  L-melt rock
Recommended:  L-melt rock    [explanation]

This is 1 of 35 approved meteorites classified as L-melt rock.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 3 Dec 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 6699 (NWA 6699)

(Northwest Africa)

Purchased: 2011 Jan

Classification: Ordinary chondrite (L, melt rock)

Petrography: Very fine grained with some relict chondrule remnants and dispersed larger, irregular grains of stained metal. Olivine, orthopyroxene, subcalcic augite, sodic plagioclase, kamacite and troilite.

Geochemistry: Olivine Fa23.5-25.6, orthopyroxene Fs17.9-18.7Wo1.8-2.8, subcalcic augite Fs14.3-14.7Wo31.6-29.6.

Classification: Ordinary chondrite, L melt rock. Both olivine and orthopyroxene can show some compositional variation, which may be inherited from the precursor chondritic protolith and not homogenized during the brief duration of the shock melting process.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2011 Jan
Mass (g):17.4
Pieces:1
Class:L-melt rock
Shock stage:S6
Weathering grade:W1
Fayalite (mol%):23.5-25.6
Ferrosilite (mol%):17.9-18.7
Wollastonite (mol%):1.8-2.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):3.5
Type spec location:UWB
Main mass:GHupé
Comments:GH-387; 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. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dominik Stoeckli   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2027 unapproved names)

Direct link to this page