Yichuan County is close to the Yihe River, and many strange stones have been found in the Yihe Beach, such as Heluo jade, plum blossom stone, snowflake stone, lotus stone, lingqingshi, sheep liver stone, yellow wax stone and mud stone. Plum blossom stone is oil black, brown red and dark green, with malachite orchid, agate red, crystal white, bamboo green, golden and light green. Lotus stone is very rich in color, gorgeous and gorgeous, with natural color and can be preserved for a long time.