Chemical products for use in the extraction of minerals; fillers derived from white minerals; filtering materials (mineral substances); filtering media (mineral substances); industrial minerals; mineral acids; mineral extenders; mineral fertilizers; mineral fillers for use in industry; mineral fillers for use in manufacture; mineral preparations for use as nutritional foodstuffs for plants; mineral preparations for use in manufacturing; mineral products for use in growing plants; mineral sands; mineral substances for use in filtering; minerals in powder form for industrial use; processed minerals; raw mineral substances; chemically treated sand; core sand binders; foundry sand; resin coated sand for industrial use; sand for use in foundries; sands for use in metallurgy; titanates; titanite; titanium dioxide for industrial purposes; absorbents derived from silica; aluminium silicate; alumino-silicates; calcium silicate; colloidal silica; colloidal silicon dispersants; magnesium ferro-silicon; potassium silicates; pure silicon; semiconductor silicon; sepiolite (magnesium silicate); silica for use as a polyolefin catalyst; silica gels; silica sols; silicates; silicon; silicon dioxide; silicone resins; silicones; single crystals of silicon; sodium silicates; solid potassium silicate; solid sodium silicate; synthetic silica; talc (magnesium silicate); absorbents derived from silica; aluminium silicate; alumino-silicates; calcium silicate; colloidal silica; colloidal silicon dispersants; magnesium ferro-silicon; potassium silicates; pure silicon; semiconductor silicon; sepiolite (magnesium silicate); silica for use as a polyolefin catalyst; silica gels; silica sols; silicates; silicon; silicon dioxide; silicone resins; silicones; single crystals of silicon; sodium silicates; solid potassium silicate; solid sodium silicate; synthetic silica; talc (magnesium silicate)