header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 10 Jul 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 8790
Basic information Name: Northwest Africa 8790
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8790
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 636 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  L3
Recommended:  L3    [explanation]

This is 1 of 666 approved meteorites classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 31 Jan 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 8790 (NWA 8790)

(Northwest Africa)

Purchased: 2014 Jan

Classification: Ordinary chondrite (L3)

History: Purchased by Fabien Kuntz in January 2014 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, round chondrules (1.1±0.6 mm) in a finer-grained matrix.

Geochemistry: Olivine, Fa0.9-43.7; Cr2O3 in ferroan olivine, 0.05-0.11 wt.%, mean 0.07±0.02 wt.%, N = 8; orthopyroxene, Fs2.0-16.9Wo0.4-1.0, N = 3; subcalcic augite, Fs9.0-13.0Wo39.2-34.2; ferrosilite, Fs58.9Wo1.3.

Classification: Ordinary chondrite (L3).

Specimens: 26.81 g including one polished thin section at PSF; main mass with Kuntz.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2014 Jan
Mass (g):636
Pieces:1
Class:L3
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):0.9-43.7
Ferrosilite (mol%):2.0-16.9
Wollastonite (mol%):0.4-1.0
Magnetic suscept.:K225
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):26.81
Type spec location:PSF
Main mass:F. Kuntz
Comments:K225; submitted by P. Sipiera
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6781 approved meteorites from (Northwest Africa) (plus 2061 unapproved names)

Direct link to this page