青田、昌化、寿山和巴林石是印石的主要石料。其中的田黄、鸡血、芙蓉、青田封门冻等,均属名贵石材,甚至与黄金同价,历来被人们所珍爱、收藏。一般来说,印石是比较容易保存的,只要避免强光曝晒、高温烤灼、硬物碰击即可。与紫砂壶收藏者一样,爱石者也讲究养护,养护得法,可使印石色泽丰厚,细腻、光洁。 Qingtian, Changhua, Shoushan and Bahraini stones are the main stones of the Indian rock. Among them, Tian Huang, Ji Xue, Hibiscus, and Qing Tian Feng Men are all precious stones, even with the same price as gold, and have always been treasured and collected by people. In general, the stone is relatively easy to save, as long as you avoid exposure to strong light, high-temperature burning, hard objects can be hit. Like the teapot collectors, those who love the stone also pay attention to conservation and conservation, and they can make the stone prints rich, delicate, and smooth.