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1. Spanish
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2. Collecting Rocks
USGS information on collecting rocks.
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3. Eastern (USA) Minerals Resources
Gateway to information on minerals and mineral resources research in the eastern United States.
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4. GeMin Exhibition
GeMin exhibition and online copipes of the Oryktologia NEA news.
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5. Gemology & Gem Identification
Provides information on becoming a gemologist. Offers testing equipment, books, tutorials and courses.
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6. Minerals of the United States
Click on the map to view pictures of minerals found in the chosen state.
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7. Perlite
Pictures, links, and a brief description of the properties and applications of this siliceous rock.
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8. 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.
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9. 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.
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