Industrial minerals, namely, silicates; diatomaceous earth; diatomaceous earth coated with chemicals; chemical preparations in the nature of filtering materials in the beverage, foodstuffs, oil, and diesel fuel industries; mineral substances in the nature of filtering materials in the beverage, foodstuffs, oil, and diesel fuel industries; unprocessed plastics in the nature of filtering materials in the beverage, foodstuffs, oil, and diesel fuel industries; minerals, namely, diatomaceous earth...