Kaolin, Clay, and Ceramic and Refractory Minerals Mining

This U.S. industry comprises (1) establishments primarily engaged in developing the mine site and/or mining clay (e.g., china clay, paper clay and slip clay) or ceramic and refractory minerals and (2) establishments primarily engaged in beneficiating (i.e., preparing) clay or ceramic and refractory minerals. It has no schema of its own: companies here are mapped on the Universal schema, and what it does not cover is recorded as gaps.