Dragon Tea Pot Yixing Purple Clay Teapot tea set chineseProduct name: purple clay Dragon & Phoenix Teapot Product introduction: Purple clay soil is a special natural soil the clay contains iron. Apart from purple mud, there are green mud and red mud. These three kinds of mud are called purple sand mud. They are made in different proportion and different temperature. So the purple clay tea set presents a special color. Range of application: professional tea ceremony brewing tools, suitable for pu' er tea,