| http://www.w3.org/ns/prov#value | - The final rule would not restrict road construction to extract locatable minerals, which include metals such as gold, silver, lead, zinc, molybdenum, rare earth minerals, and uranium; non-metallic minerals such as fluorspar, feldspar, and gem stones; and uncommon varieties of sand, stone, gravel, pumice, pumicite, and cinders such as high calcium limestone used for cement.
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