header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 16 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 8039
Basic information Name: Northwest Africa 8039
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8039
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 99 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  H3
Recommended:  H3    [explanation]

This is 1 of 594 approved meteorites (plus 2 unapproved names) classified as H3.   [show all]
Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 30 Dec 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 8039 (NWA 8039)

(Northwest Africa)

Purchased: 2013

Classification: Ordinary chondrite (H3)

History: Purchased by Eric Twelker in 2013 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Very fresh specimen composed of small (0.2-0.9 mm, some up to 1.7 mm), well-formed chondrules and some mineral fragments in a black, relatively metal-rich matrix. Olivine, orthopyroxene, subcalcic augite, diopside, sodic plagioclase, chromite, kamacite and troilite.

Geochemistry: Olivine (Fa0.9-53.0; Cr2O3 in ferroan olivine 0.07-0.20 wt.%, mean 0.12±0.05 wt.%, N = 8), orthopyroxene (Fs1.3-19.8Wo0.9-2.7), subcalcic augite (Fs7.4Wo29.6), diopside (Fs0.9Wo47.1).

Classification: Ordinary chondrite (H3.4). Estimation of subtype based on histograms of Cr2O3 distribution in ferroan olivine given in Fig. 4 of Grossman and Brearley (2005).

Specimens: 19.9 g and one polished thin section are at UWB. The remainder is held by Twelker.

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:Zagora
Date:P 2013
Mass (g):99
Pieces:40
Class:H3
Shock stage:S2
Weathering grade:W0
Fayalite (mol%):0.9-53.0 (n = 10)
Ferrosilite (mol%):1.3-19.8
Wollastonite (mol%):0.9-2.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):19.9
Type spec location:UWB
Main mass:E. Twelker
Comments:ETNWA13-3; 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)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
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 7009 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

Direct link to this page