About Zhu Ni Clay:

Zhu Ni clay,it is called bright red clay also,the colour of it's mine is orange color,it is contained in the bottom of the purple clay mine deeply,it is very solid as stone,so it is called stone yellow clay also.Zhu Ni caly isn't being by oneself ,it is choosed from other purple clay mine raw materials ,so it is one kind of the rarity and quality purple purple clay ,it is made smaller and simple tea pot usually for save use it,or it is used as other tea pot's surface layer dope for let it is more look nice.please see their pot's pictures