Christy Minerals is a leading manufacturer of high quality calcined clay and raw clays. Christy Minerals mines, processes and markets a variety of clays and minerals for the refractory industry, investment casting industry, pottery and art ceramics industry, fluid bed boilers, and general ceramics industry. Products include calcined Missouri flint clays, raw clays (Hawthorn Bond), bauxite, burley, diaspore and STKO for the investment casting industry. Custom calcining, grinding and packaging also available.