Yes With the development of the times, purple sand is gradually scarce, and the output of purple sand pots is gradually decreasing. It may be out of print in the next few years, which is very collectible and the price will continue to rise. Zisha Pot is a unique handmade clay handicraft in China. Its production began in Zhengde period of Ming Dynasty, and the raw material was purple mud, which was produced in Dingshu Town, Yixing, Jiangsu Province.