Cornish Stone

Code 3015 Cornish Stone. Powdered granite, also known as China Stone, Pegmatite or Petuntse. An alternative, but not a substitute to feldspar as a high temperature flux, giving greater fired strength. This stone has a low iron content, so improving whiteness, and a high silica content and so promoting a greater transparency. It is therefore particularly appropriate for use in china, porcelain and other white bodies.