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Porcelain / ceramic tableware

Composition

Made by firing a mixture of clay, kaolin, quartz sand, and feldspar. Often covered with a glaze that may contain metal oxides for colouring.

Environmental impact

Ceramic is inert and lasts virtually forever without decomposing. It does not release significant harmful substances unless the glaze contains heavy metals.

Disposal instructions

Dispose of these items at a recycling yard.

Factoid

In some cities, old ceramic tiles and porcelain are crushed and used as aggregate in road construction, reducing the need for natural gravel.