Aryıldız 83 Piece Prestige Bone Dinner Set 33020 Product General Features Basically, porcelain is divided into two. a) Hard porcelain b) Soft porcelain Hard porcelain is generally produced in the European Continent, and soft porcelain is produced in China, Japan and England. Hard Porcelain: Its most important features are its high kaolin properties (50%) and its feldspar secret that melts only at 1400 - 1500 C. At this temperature, the porcelain body under the glaze also turns into ingots. As a result, extraordinary surface hardness and durability of the glaze, like the body, emerges. Soft Porcelain (Bone China) or Bone China: It contains 50 - 65% bone powder in its blend. The remaining 15 - 30% consists of pegmatite and kaolin, consisting of quartz and felspar. Bone China Porcelain appears as the highest quality porcelain type today. It has a thinner and more elegant appearance than normal porcelain. The main feature of Bone China Porcelain is bone powder. The leg bone of the cattle is first ground into powder. Bone powder, which is then processed into ash, is made through a very laborious and costly process. Generally, 50% to 70% bone powder is used in Bone China porcelain. The reason why its price is more expensive than normal porcelain is that its workmanship is so difficult and laborious that it requires an art. A good Bone China is the one that transmits the most light. A good Bone China is bone colored. Bone China is the most elegant and expensive type of porcelain.