Minerals Technologies is a resource- and technology-based company. Co.'s segments are: Performance Materials, which supplies bentonite and bentonite-related products, chromite and leonardite; Specialty Minerals, which produces and sells the synthetic mineral product precipitated calcium carbonate and processed mineral product quicklime, and mines mineral ores then processes and sells natural mineral products, primarily limestone and talc; Refractories, which produces monolithic and shaped refractory materials and specialty products; and Energy Services, which provides services to improve the production, costs, compliance, and environmental impact in the oil and gas industry.