industrial minerals, namely, barite, bauxite, brucite, celestite, hematite, ilmenite, magnetite, rutile, spodumene talc, zeolite, zircon sand, kaolin, clay, bentonite, clay ball, calcined clay, enameled clay, fire/refractory clay, calcined and hydrous kaolin; non-ferrous metals and their alloys; rare earths; metallic oxides; alkaline metals; industrial chemicals; sulfates; fluoride compounds, namely, aluminum fluoride, barium fluoride, calcium fluoride, cerium fluoride, dysprosium fluoride, e...