Xu Gongyan is the important breed in Lu Yan. Enjoy great reputation early namely in Tang Song period. Public right of Tang Dynasty Yan Zhenqing, willow, the celebrity such as Song Daiou Yang Xiu, Su Shi, Mi Fei, concern in its the introduction and comment on ever had been made in write, and the opinion is very high. Xu Gongyan's stone originates in green a white horse with a black mane of the county austral short for the Yihe River to press down village of Xu Gong inn, it is the mineral products resource with this particular town, belong to layer of incredible connecting with the boxing skill, reserve is substantial. Its stone is qualitative hard, density is extremely high. Those who kowtow is ringing, its sound is like chime stone, next Chinese ink are like defeat, if hair Chinese ink is oily, little benefit of colour and lustre, and not caustic fine long hair, can calls inkstone stone material medium top grade.
According to legend makes inkstone with this stone at first, it is one Xu surname is lifted child, comfortable compare greatly year, go to Beijing to should try, pass ground of short for the Yihe River, in discovering channel tract, have now and then strange model stone piece, because love its look look, try wear inkstone, carry Beijing, use at examination room. Duration weather is cold, the Chinese ink in all examinee inkstone is frozen completely, only the prepared Chinese ink in Xu Shengyan does not freeze, write fluent, chinese ink color is glittering and translucent, get appreciation of official of be in charge of an examination very, get a successful candidate in the highest imperial examinations so. Xu Gong rests after official, recall strange inkstone, settle then this ground, reason general store of Xu of name of this ground village, hind here is famed with producing Xu Gongyan. Today test and verify, xu Gongyan's prepared Chinese ink is in - 4 ℃ are not frozen really, as expected deserve the reputations one enjoys.
In inn of each cultural relic has carry out south Linyi, short for the Yihe River.