Wandu's "Yunlin Stone Spectrum" records: "Zijinshan stone unearthed in Shouchun County, Shouchun Prefecture, is purple in color, carved as an inkstone, which is extremely inky and thumped. The rest of the old inkstones handed down from family are extremely thin and light, all of which are antiques." The column "Four Treasures of the Study" in China Fine Arts Dictionary reads: "Purple stone inkstone is produced in Zijinshan, Shouchun, Anhui, also known as Shouchun inkstone. Su Dongpo, a great writer in the Song Dynasty, borrowed a purple inkstone from Mi Fei to bury his son in a coffin. " Mi Fei, a great calligrapher, said in the calligraphy work Zijin Tie handed down from ancient times: "The newly acquired stone in Zijinyoujun Township has been used for several days. If I don't come, I won't use it again!" "Su Zizhan took my purple inkstone and told his son to go into the coffin. I understand now, not to collect. How can you live with pure, round and bright nature when things are handed down from generation to generation? "In addition, Mi Fei's" Jin Bao Ying Guang Ji "Volume 8 also contains a magazine article about this matter:" I only got purple stone when I was old, just like the right army inkstone collected by the Yu family, which is the best in the world and second to none. " Zheng Banqiao, a great painter and calligrapher in the Qing Dynasty, wrote in Ding Youyu's inscription "Yan Ming": "The jewel of the Southern Tang Dynasty is fertile land for me, with millet meticulous, moist and firm, elk pills foggy, and wheat grains flashing smoke. I have tried every word, and I am blessed by the horse, blessed by the sky, and a thousand years are like a mountain. "