This is a question we get asked quite regularly. Porcelain is a type of material used for some wall and most floor tiles, it is the hardest and most durable of all tile materials and is formed by firing pressed clay or clay dust at very high temperatures to “fuse” the body into a solid mass. Ceramic is a generic description of anything produced from clay or clay derivative products – for example tableware, tiles, insulators, sanitaryware – these can all be described as Ceramic but not all are Porcelain.
Four examples of different ceramics are earthenware, stoneware, porcelain and bone china. They can all be described as Ceramic but only those with a very low water absorption (the means of porcelain classification) can be called Porcelain.
So the answer to the question is it porcelain or ceramic is – if it’s a wall or floor tile it certainly is ceramic but if it’s a tile with a low water absorption it will be both Ceramic AND Porcelain.