header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 7 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 7268
Basic information Name: Northwest Africa 7268
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7268
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 220 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 18 Dec 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7268 (NWA 7268)

(Northwest Africa)

Purchased: 2012 Feb

Classification: Ureilite

History: Purchased by Greg Hupé in February 2012 from a Moroccan dealer at the Tuscon Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Coarse grained, protogranular aggregate of stained olivine and smoky grey pigeonite, with narrow opaque, metal-rich zones along grain boundaries.

Geochemistry: Olivine (cores Fa20.4-20.5; rim Fa7.3; Cr2O3 = 0.65-0.71 wt.%), pigeonite (Fs17.6-17.7Wo5.5-5.2).

Classification: Ureilite

Specimens: 20.1 g of type material and one polished thin section are on deposit at UWB. The remaining material is held by GHupé.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2012 Feb
Mass (g):220
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:low
Fayalite (mol%):20.4-20.5
Ferrosilite (mol%):17.6-17.7
Wollastonite (mol%):5.5-5.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.1
Type spec location:UWB
Main mass:G. Hupe
Comments:GH-425; 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)
Hupe: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7005 approved meteorites from (Northwest Africa) (plus 2002 unapproved names)

Direct link to this page