Clay

Clays exhibit plasticity when mixed with water in certain proportions. When dry, clay becomes firm and when fired in a kiln, permanent physical and chemical reactions occur. These reactions, among other changes, cause the clay to be converted into a ceramic material.

Because of these properties, clay is used for making pottery items, both utilitarian and decorative. Different types of clay give different properties and different colors, from a dull gray to a deep orange-red.

Clay, being relatively impermeable to water, is also used where natural seals are needed, such as in the cores of dams, or as a barrier in landfills against toxic seepage

Recent studies have investigated clay's absorption capacities in various applications, such as the removal of heavy metals from waste water and air purification.

@ Click here to discover the wonders of Richard Ginori's clay