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Northwest Africa 7600
Basic information Name: Northwest Africa 7600
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7600
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 72 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 3 Jun 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7600 (NWA 7600)

(Northwest Africa)

Purchased: 2012

Classification: Ureilite

History: Purchased by Stefan Ralew in 2012 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly a medium- to coarse-grained protogranular aggregate of olivine (reduced metal-bearing rims) and low-Ca pyroxene, but with finer grained, recrystallized regions exhibiting triple grain junctions. Minor staining of silicates by iron hydroxides.

Geochemistry: Olivine (cores Fa17.6-17.9, Cr2O3 = 0.63 wt.%; rims Fa9.1), low-Ca pyroxene (Fs15.0-15.2Wo4.5-4.6).

Classification: Ureilite

Specimens: 14.7 g of sample and one polished thin section are on deposit at UWB. Ralew holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2012
Mass (g):72
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:low
Fayalite (mol%):17.6-17.9
Ferrosilite (mol%):15.0-15.2
Wollastonite (mol%):4.5-4.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):14.7
Type spec location:UWB
Main mass:Ralew
Comments:RA12-101; 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)
Ralew: Stefan Ralew, Kunibertstra├če 29, 12524 Berlin, Germany; Website (private address)
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)

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