China clay kaolin has been the traditional raw material for UB pigment synthetic production.
Ultramarine blue is a historical pigment having been found in Egyptian tomb paintings. Synthetic ultramarine was produced at the beginnig of the nineteenth Century.
Ultramarines are HYDROPHOBIC, or ‘water hating’, and often do not mix well with water.
Ultramarine blue made with Asturian refined hard kaolin from deposits associated with Armorican quartzite.