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Start Over You searched for: Resource Class Datasets Remove constraint Resource Class: Datasets Subject Pyrophyllite Remove constraint Subject: Pyrophyllite Creator Geological Survey (U.S.) Minerals Information Team Remove constraint Creator: Geological Survey (U.S.) Minerals Information Team

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2003. Geological Survey (U.S.) Minerals Information Team. This point shapefile represents the locations of refractory, abrasive, and other industrial minerals operations in the United States. The data repr... National Atlas of the United States.