P PREFERRED SANDS

Industrial minerals, namely, sodium silicate and sodium silicide; industrial minerals for industrial, manufacturing and metallurgical purposes, namely, mineral blends containing olivine, magnesite, zircon, fireclays, silica, magnesium calcium, dolomite, alumina, chromite, silicon carbide, carbon and/or mullite; minerals, namely, customized blends of silica and feldspar for use in the manufacture of goods; processed minerals, namely, silica, used for friction in the automotive and locomotive industries; industrial minerals, namely, ground crystalline silica for use in the manufacture of glass or glass fiber; industrial minerals, namely, sodium feldspar for use in the ceramic industry as a ceramic flux; hydraulic fracturing sands and gravel packing sands, namely, processed monocrystalline silica used as a proppant in the oil and gas industries; sand for foundry purposes; foundry sand for use in metal and sand casting

Sand; pool filter sand; filtration sand, namely, processed silica sand and crushed quartz mixtures used in filters for potable water purification, waste water processing, industrial process fluids and recreational water filtration