Bone china is normally made from 2 parts bone ash, along with 1 part kaolin and 1 part china stone. The hard past, however, is composed of kaolin, feldspar and quartz. The hard paste is then fired at a low temperature which, consequently, allows the porcelain to harden, become translucent and give it great stability and resistance. Finally, soft paste is composed of kaolin, feldspar, nepheline syenite and other rocks and is fired at an even lower temperature than hard paste, thus being less hard than firing hard paste porcelain objects. This type of soft paste was one of the first types of paste that Europeans first used in hopes of replicating Chinese porcelain. Unfortunately, they were not very successful due to the fact that they did not use the correct clay mixes, which caused their artistic appearance to warp or fail.