Industrial Minerals
Illinois State Geological Survey
Association for Mineral Exploration British Columbia
Fraunhofer IKTS in Dresden, Germany
Institute for Mineralogy and Mineral Resources
Marine Mineral Occurrences
(French and English)
Massachusetts Institute of Technology - Earth Resources Laboratory
Minnesota Department of Natural Resources - Division of Minerals
Natural Resources Canada
University of Missouri at Rolla - School of Materials, Energy, & Earth Resources
U.S. Geological Survey
Updated 9/28/2009 SLD