Beatrix potter rebecca puddleduck

Bone china

Bone china is a type of porcelain body initially used in the United Kingdom in which calcined ox bone, bone ash, is a critical part. It is characterised by supreme whiteness, strength and translucency. beatrix potter rebecca puddleduck may be an example of this procedure.

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

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

Bone china production consistently employs a two stage firing where the initial "biscuit" is fired without a glaze at 1280