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Directory of Non-Metallic Deposits Resources

Home > Science > Earth Sciences > Geology > Rocks and Minerals > Non-Metallic Deposits

Examples of non-metallic rocks and minerals of economic interest include coal, gemstones, construction aggregate (gravel or riprap), building stone, salt, gypsum and anhydrite, industrial-grade clays, fluorspar, phosphate, nitrate, and barite. Peat moss is included here because it is a fossil resource (i.e., it is mined faster than it is formed) similar in many respects to coal.

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