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  • Collecting Rocks - USGS information on collecting rocks.
  • Eastern (USA) Minerals Resources - Gateway to information on minerals and mineral resources research in the eastern United States.
  • GeMin Exhibition - GeMin exhibition and online copipes of the Oryktologia NEA news.
  • Minerals of the United States - Click on the map to view pictures of minerals found in the chosen state.
  • Perlite - Pictures, links, and a brief description of the properties and applications of this siliceous rock.
  • Rakovan, John - Professor in the Department of Geology at Miami University, Oxford, OH. Includes information on Dr. Rakovan's research and teaching in mineralogy and geochemistry.
  • The Rock Gallery - Geological display of images and information including crystals, minerals and gems.
  • The Rock, Mineral, and Fossil Reference - Contains over 100 pictures of minerals, rocks and fossils, as well as information about classification, identification, the Science Olympiad Rocks and Minerals event and related topics.
  • Salt (MRBloch Archive) - A collection of material relating to salt [NaCl] and its influence on civilization. Includes sections on physiology, geology, archeology, palaeoclimatology, palaeogeography, production, religion, economics, and etymiology of salt.
  • YupRocks - high-resolution pictures of rocks and minerals, taken from personal collections, as well as the Calvin College Geology Department, Michigan, USA.