CORNISH STONE (CORNWALL STONE)

Cornish Stone ( cornwall ston)

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.

A white firing flux commonly used in both clay body and glaze preparation.

Formule molaire:

CaO = 0,198     Al2O3= 1,135

Na2O= 0,42       Fe2O3= 0,006

K2O= 0,357       SiO3= 9,217

MgO= 0,024      TiO2= 0,006

                          P2O5= 0,025

Masses molaires: 756,493

Masses molaires: 102