Unless the context in which used clearly requires a different meaning as used in this article:(a) 'Open-pit mine' means an excavation worked from the surface and open to daylight.(b) 'Underground mine' means subterranean workings for the purpose of obtaining a desired material or materials.(c) 'Sand' means waterworn sandstone fragments transported and deposited by water.(d) 'Gravel' means an occurrence of waterworn pebbles.(e) 'Sandstone' means a compacted or cemented sediment composed chiefly of quartz grains.(f) 'Limestone' means a sedimentary rock composed mostly of calcium carbonate.(g) 'Clay' means a natural material of mostly small fragments of hydrous aluminum silicates and possessing plastic properties.(h) 'Shale' means a laminated sedimentary rock composed chiefly of small particles of a clay grade.(i) 'Iron ore' means a mineral or minerals, and gangue which when treated will yield iron at a profit.(j) 'Manganese ore' means a metalliferous mineral which when treated will yield manganese at a profit.
West Virginia Legal Code