You might have heard the phrase fireclay sink bandied about - its one that isnt used that often but generally refers to sinks that are made from fine fireclay glazed with heavy duty porcelain that can withstand temperatures of up to 1200 degrees celsius. Were talking about tough old sinks here, ones that are scratch resistant and will last and last. However, they are styled to look elegant, chic and well designed. Like the one below: