Grolleg China Clay Source: https://www.ctmpotterssupplies.co.uk/SMLCTM%2045%20104%20China%20Clay%20Kaolin%2024022017.pdf Updated: 09/11/2021 Aliases: Grolleg, China Clay, Grolleg Components: Formula Ratio SiO2 49.60% TiO2 0.10% Al2O3 35.20% FeO 0.80% CaO 0.10% MgO 0.30% K2O 3.30% Na2O 0.10% ← Back to Ceramics Index