Subjects: *MINES & mineral resources; *INDUSTRIAL minerals; *URANIUM oresWYOMING
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Subjects: *MINING engineering; SMELTING furnaces; INDUSTRIAL minerals
Subjects: *STRIP mining; ZINC; INDUSTRIAL minerals
Subjects: MINERALS; MINES & mineral resources; INDUSTRIAL minerals
Subjects: MINERALS; MINES & mineral resources; GEOLOGICAL surveysWESTERN Australia
Subjects: SCIENCE museums; CHEMOSTRATIGRAPHY; GEOLOGICAL surveysCOVINGTON (Ky.)
Subjects: *INDUSTRIAL minerals; *CARBONATE minerals; *COASTAL plainsTEXAS
Subjects: SCIENCE museums; MINES & mineral resources; INDUSTRIAL mineralsNAMIBIANAMIBIANAMIBIAReport Available
Subjects: *INVESTORS; INDUSTRIAL minerals; GEOLOGICAL surveysUGANDA