hydrometallurgy, wollastonite, clastic, eluvial, evaporite, calcium sulphate, neocomian, glauconite, detrital, ostracod, phosphorite, potassium sulphate, colluvium, sodium sulphate, nepheline, anhydrite, bentonite, zechstein, paleogene, decantation, potassium sulfate, borate, bitumens, lithium oxide, kaolinite, barite, calcine, anorthosite, sulfide, tailings, spodumene, calcination, carnallite, raffinate, hypogene, leucoxene, gravels, insitu, halloysite, phosphatic, feldspar, oxide, sylvite, pyrophyllite, calcium oxide, cordierite, thenardite, stibnite, orogeny, molybdenum, ferric oxide, argentiferous, gangue, foreland, halite, dolomites, scheelite, phyllosilicate, opencut, asphalts, zeolite, carnotite, alunite, bastnasite, shale, pyrites, alluvium, candelilla, ricinus, greisen, pentoxide, quicklime, saprolite, eolian, adipic acid, copper oxide, magnesite, ferromanganese, claystone, catface, arenite, aluminosilicate, limonite, aluminous, hypabyssal, pyrochlore, electrowinning, vanadium, enargite, cherty, droshky, froth flotation, alkali, cretaceous, liquification, humic, mineral, silicic, loess, extrusive, glacial acetic acid, adularia, limestone, marl, limestones, bauxite, carbonates, chalks, gypsum, kaolin, silts, borax, calcite, carbonate, chalk, dolomite, lignite, pyrite, sandstones, silt, diatomaceous, anthracite, aptian, cambrian, cenomanian, charcoal, devonian, granular, gravel, infusorial, jurassic, magnetite, messinian, oligocene, pennsylvanian, permeable, permian

earth, ground

diatomaceous earth, kieselguhr