Carbonatites of the world, explored deposits of Nb and REE

Information on carbonatite deposits containing niobium and rare earth elements from around the world with grade and tonnage models, geologic setting, mineralogy. Select and Download here

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://mrdata.usgs.gov/mineral-resources/carbonatite.html
Page Contact Information: Peter Schweitzer
Page Last Modified: Thursday, 16-May-2013 12:04:04 MDT