Polyresin

Polyresin is a stone-based material which can be intricately molded producing great detail, and will allow paint to adhere.
These items may be cleaned by dusting, or using a slightly dampened cloth, however, they should not be emersed in water as they are painted with water soluble paints.
A light cleaning with a damp cloth is permissible.
It is also sometimes called "Alabastrite".

Ceramic 

Ceramic pieces are objects made of clay hardened into a relatively permanent material by firing.
Due to the permanence of this material many form of cleaning are acceptable, including dishwashing.

Dolomite 

Dolomite is a magnesia-rich, sedimentary rock resembling limestone, dolomite is either gray, pink or white in color.  These items may be cleaned by dusting, or using a slightly dampened cloth.

Alabastrite

See Polyresin

Polystone

Polystone is composed mainly of special unsaturated resin.  It is a high-grade solid surface material made with polymer composite technology.  It can be cleaned with with soap and water. The commonly used glass cleansers are the best agent to keep Polystone surfaces clean and shiny.

Clay

Clay is an earthy material that is plastic when wet and hardens when heated.  It is widely used in making bricks, tiles, and pottery.   Once glazed, clay items can be cleaned using product like 409 and a soft bottle brush.  Always rub gently.