Red Chinese clay teapot
Red sandy clay are very popular in the market, especially the red clay POTS and Dahongpao purple clay POTS. But these two belong to the best mud material, the market can rarely see the real, most of them are fake with red mud. In fact, the effect of buying red clay purple sand pot is also very good, the following details about the red clay purple sand pot.
1, color: red mud inside the iron content is high, red mud ore has yellow, cyan and red. Among them, yellow and cyan are more common. The fine red mud is clean and bright, and the orange is a little red light, which is delicate and beautiful.
2, shrinkage rate: the shrinkage rate of red mud is larger than that of purple mud, ordinary red mud, its shrinkage rate can reach 12%. Red mud boutique, we call it red mud, its shrinkage rate can reach more than 20%. And purple mud, its shrinkage rate is only about 8%. This is the first inherent characteristic of red mud, the shrinkage rate is large.
3, yield: Because the shrinkage rate of red mud is large, it is easy to deform in the process of making purple clay POTS. As a result, its yield is relatively low. And red mud is not as good as purple mud. Therefore, pot friends who like to play red mud must have an inclusive mentality. This is the second characteristic of red mud low yield, making pot is relatively difficult.
4, high density: the density of red mud is large, or due to its large shrinkage rate. In the clay material of purple sand, the greater the shrinkage rate, the higher its density. Red mud has a tighter texture, so its audio will be higher. When we rub the lid on the spout, the sound of red mud will be very crisp.