Floradora gold open sugar

Bone china

Bone china is a type of porcelain body originally produced in the UK in which calcined ox bone, bone ash, is an important constituent. It is distinguish by extreme whiteness, strength and translucency. floradora gold open sugar may be an example of this procedure.

The initial use of bone ash in ceramics is assigned to Thomas Frye in in the late 1740s in which he used it to introduce a kind of soft-paste porcelain. In Towards the end of the 18th century, Josiah Spode undertook further developments, and subsequently made it popular, by mixing it with China stone, china clay and kaolin to compete against the imported Oriental porcelain.

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

Bone china production normally involves a two stage firing process where the first "biscuit" is fired without a glaze at 1280