Showing posts with label Spone China. Show all posts
Showing posts with label Spone China. Show all posts

Feb 7, 2014

Porcelain, Fine China, and Bone China

Exported Chinese porcelains were held in such great esteem in Europe that in the English language china became a synonym for porcelain.

Bone china is made from cow bone ash and other ingredients. The addition of animal bone ash gives bone china a warm color, while fine china is a brighter white. Bone china has a translucent quality compared to fine china. Fine china is made the same way, replacing bone with kaolin clay. 

Spone china - American artist Charles Krafft replaced cow bone ash with human bone ash, retrieved from a crematorium.

Porcelain is fired at a higher temperature and is much harder. Porcelain gets its name from old Italian porcellana (cowrie shell) because of its resemblance to the translucent surface of the shell. The raw materials are finely ground, cleaned, formed in a mold, and then fired.

If the temperature is high the finished product is more durable and known as porcelain. If it’s fired at a lower temperature it becomes fine china. Fine china is much softer than porcelain, making it suitable for plates and cups. Porcelain is strong enough and durable enough for a wide range of products, such as electrical insulators and toilets. Bottom line, all china is porcelain, but not all porcelain is china.