Lady carlyle open veg

Bone china

Bone china is a kind of porcelain body originally used in the UK in which calcined ox bone, bone ash, is an essential constituent. It is characterized by high whiteness, strength and translucency. lady carlyle open veg may be an example of this procedure.

The initial use of bone ash in ceramics is attributed to Thomas Frye in in the late 1740s in which he used it to make a type of soft-paste porcelain. In At the close of the 18th century, Josiah Spode carried on with further developments, and subsequently popularised it, by mixing it with kaolin, china clay and China stone to compete with the imported Oriental porcelain.

The original elementary recipe of six parts bone ash, three and a half parts china clay, and four parts china stone still remains the standard English body.

The production of bone china customarily uses a two stage firing where the first "biscuit" is fired without a glaze at 1280