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Northwest Africa 1668
Basic information Name: Northwest Africa 1668
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 1668
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass:help 710 g
Classification
  history:
Meteoritical Bulletin:  MB 88  (2004)  R5
MetBase:  v. 7.1  (2006)  R5
Recommended:  R5    [explanation]

This is 1 of 40 approved meteorites classified as R5.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)
Writeuphelp
Writeup from MB 88:

Northwest Africa 1668, additional data

Morocco

Purchased 2002 October

Rumuruti chondrite (R5)

Oxygen isotope analysis by D. Rumble (CIW) has confirmed the classification of this stone. Replicate analyses of fresh interior material by laser fluorination gave δ18O = 4.85‰, δ17O = 5.32‰, ∆17O = 2.762 ± 0.002‰. Specimens: type specimen, 24 g, and one polished thin section, UWS; main mass, ROM.

Data from:
  MB87
  Table 8
  Line 229:
Place of purchase:Denver
Date:P Oct 2002
Mass (g):710
Pieces:1
Class:R5
Fayalite (mol%):38.9
Ferrosilite (mol%):30.2
Classifier:A. Irving, UWS
Type spec mass (g):23.6
Main mass:ROM
Comments:awaruite: 72% Ni
Data from:
  MB88
  Table 4
  Line 17:
Date:Oct 2002
Mass (g):710
Pieces:1
Class:R5
Plots: O isotopes:  
Institutions
   and collections		 ROM: Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada (institutional address; updated 18 Oct 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)
CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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