Minerals Technologies Inc. is a resource- and technology-based company that develops, produces and markets a range of specialty mineral, mineral-based and synthetic mineral products and related systems and services around the world. It operates through three segments. The Performance Materials segment is a supplier of bentonite and bentonite-related products, chromite and leonardite. It also offers products and services to the upstream and downstream oil and gas sector. The Specialty Minerals segment produces and sells the synthetic mineral product precipitated calcium carbonate (PCC), and processed mineral product quicklime (lime), and mines mineral ores then processes and sells natural mineral products, primarily limestone and talc. The Refractories segment produces and markets monolithic and shaped refractory materials and specialty products, services and application and measurement equipment, and calcium metal and metallurgical wire products.