Zed's gave as much as i know, porcelain (this word came up in the distant past.. it has an interesting etemology, as i recall) is stronger, lighter, and frequently translucent, other pottery, (stoneware, iron stone, terracotta) is heavier, and more fragile (yes, if you use your Lennox china as your every day, it will hold up better than the cheaper kind!)

i vaguely recall that porcelains use those interesting clays we discused last year, the Kaolins (kaolin is word that refers to several different clay compounds) some are used medicinally, (as in kaopectate)-but i could be wrong about that.

porcelains were first perfected in china.