苏州是著名的澄砚产地。澄砚因产于太湖之滨,又称太湖砚,它石质细腻,幼嫩坚实,能贮墨不涸,笔锋经久不退。唐代著名诗人皮日休《太湖砚》诗中称其为“月融还似洗,云湿便堪研”。陆龟蒙《咏太湖砚》诗中亦有“坐久云应出,诗成墨未干。”的赞语。因此,苏州澄砚与广东端砚、安徽歙砚、甘肃洮砚齐名、被誉为中国的名砚。制作澄砚的砚石,产于苏州西南的灵岩山、砚石山一带,砚石山因产砚石而得名。灵岩山因苏州花岗岩中夹杂一些砚石,早在三国时就有人在此取石制砚,故古时亦称砚石山。制作澄砚的砚石,是二叠系堰桥组地层中的部分页岩。这种二亿 Suzhou is famous Chengyan origin. Cheng Yan produced for the coast of Taihu Lake, also known as the Taihu Yan, it is exquisite stone, young and solid, can not ink dry up, pen forward without delay. The famous Tang Dynasty poet Pi Ri-hui, “Taihu Yan” poem called “Moonlight also seems to wash, the cloud will wet research”. Lu Guimeng “Yongtai Lake Yan” also has poems “sit for a long time should be out of clouds, poetry into ink is not dry.” Praise language. Therefore, Cheng Cheng Suzhou and Guangdong Duan Yan, Anhui Yu Yan, Gansu Yan ink par, known as China’s famous inkstone. Inkstone made Cheng Yan, produced in Suzhou Southwest Lingyan Hill, Yan Shishan area, inkstone Hill named for producing inkstone. Lingyan Mountain Suzhou granite mixed with some inkstone, as early as the Three Kingdoms when someone was stone Yan Yan, ancient times, also known as Inkstone Hill. Inkstone made Cheng Yan, Permian weir bridge formation part of the shale. This kind of two hundred million