Section 22A-4-1 - DefinitionsUnless 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.