QUARTZ
ca: QUARS
es: CUARZO
Quartz is a silica rock. It is used in the manufacture of clay for ceramics, is added as silica sand, which is essential for processing of materials when being fired and it also acts as a flux in glazes.
Queen´s Ware: the name used by Josiah Wedgwood for special cream colored earthenware he used and gave as a present to Queen Charlotte.