Mineral Commodity Summaries 2015
Bismuth Hafnium Phosphate Rock Thallium Boron Helium Platinum Thorium Bromine Indium Potash Tin Cadmium Iodine Pumice Titanium ... Classification for Minerals" and "Part B—Sources of Reserves Data." A directory of USGS minerals information country specialists and their responsibilities is Appendix D.
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