Low iron content reduces unwanted color in ceramics for pure results
High silica feldspar composition enhances strength during firing
Acts as a flux for improved clay body and glaze performance
Strong adhesive properties support effective engobing techniques
Can be used as a glaze when combined with suitable flux
Summarized by Shop
Cornwall stone is a low iron,high silca feldspar material employed as a flux in clay bodies and glazes. In clay bodies it gives strength while firing. Also used in engobes because of its adhesive properties. With
the addition of a suitable flux, Cornwall Stone can be used as a glaze. Sometimes called English Cornish Stone.
