| http://www.w3.org/ns/prov#value | - Petroleum is found near the surface in many localities; near Laramie is a large deposit of mica; building stone is abundant; agates, amethysts, and other valuable stones have been found in the valley of the Sweetwater river; plumbago and graphite, soda, sulphur, asphaltum, and asbestos are among Wyoming???s minerals, and the precious metals are found in many portions of the state.
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