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SP-14-95

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U.S. Department of the Interior
U.S. Geological Survey
Minerals Information
988 National Center
Reston, VA 20192 USA

URL:  http://minerals.usgs.gov/minerals/pubs/commodity/gemstones/sp14-95/sources.html
Maintained by:  rcallaghan@usgs.gov
Last modification:  11-Jan-2013@16:52

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Contact:  Donald W. Olson (dolson@usgs.gov)