Posted 7 years ago
Bone china is a type of soft-paste porcelain that is composed of bone ash, feldspathic material, and kaolin. It has been defined as ware with a translucent body containing a minimum of 30% of phosphate derived from animal bone and calculated calcium phosphate. Developed by English potter Josiah Spode, bone china is known for its high levels of whiteness and translucency, and very high mechanical strength and chip resistance.
From its initial development and up to the later part of the twentieth century, bone china was almost exclusively an English product, with production being effectively localised to Stoke-on-Trent. Most major English firms used it, including Mintons, Coalport, Davenport, Derby, Herculaneum Pottery, Wedgwood, and Worcester. In an English context, references to "china" or "porcelain" often actually mean bone china.