Ceramic - Pottery Dictionary

by Susan Mussi

ELORESCENCE - Bits of white scum in red clay.

ca: EFLORESCÈNCIA – Sals que es dipositen a la superfície de l'argila.

es: EFLORESCENCIA - Sales que se depositan en la superficie de la arcilla.

Elorescence in clay: is bits of white scum in red clay which cannot be seen but when the clay is fired and becomes bisque; they can form white spots in the surface which are very difficult to remove. If removed they will leave an indent and if glazed will expel the glaze at that point.