Among the four famous stones, why is Kunshi the most praised?

Kunshi once became a symbol of the high-mindedness of literati and the spirit of wildness in the mountains and forests. Lu You used his heart to contain the spirit, as if he were facing Songhua, and the poem said, 'Yanshan calamus is famous for Kunshan, and Chen Sou brings it to comfort the solitude.' His teacher was once obsessed and crazy, begging for it in every possible way. After getting the stone, he placed it on his desk to play with, and wrote, 'Scattered books are lined up in the window, and the rubbing comforts the decay.' Yang Bei, the younger brother of Yang Yi, a famous minister of the Northern Song Dynasty, was a master of seven-character quatrains. He generously recognized Bi He's beauty of jade, and the poem said, 'The mountain light in the cloud is about to flow, and it is difficult to seek a piece of jade at that time.' Zhang Yu of the Yuan Dynasty got a Kunshi about a foot high and was extremely excited. He wrote, 'With Mr. Zuo's strange stone for offering, the East China Sea in his sleeve is like a treasure.' Gu Ying, a Yuan Dynasty ticket friend who loved strange peaks and stones, introduced the lotus with the same stem, and was one of the three richest men in the south of the Yangtze River. In his Jade Mountain Thatched Cottage, he collected the famous 'Cloud-making Stone', often organized Jade Mountain Poetry Gatherings, and wrote poems for appreciation. Later, when Qianlong went down to the south of the Yangtze River, the green lotus in the Meishi Garden in Hangzhou, and the sister stone 'Qingzhi Xiu and Qingyun Piece' loved by Mi Wanzhong, were all netted back to the Yuanmingyuan and the Summer Palace. In the Ming Dynasty, stone appreciation became a fashion. Wang Chideng came to Yufeng to visit the ancient times and wrote, 'The land thinks that Jin Zeng clothed, and the mountain will get the name of jade.' Wu Kuan, a calligrapher of the Ming Dynasty, ascended to the ancient times, and wrote, 'The jade stone of Kungang has not been burned together, and the ancient trees and dangerous vines are covered with white clouds.' Gui Zhuang, the great-grandson of Gui Youguang, and Gu Yanwu were known as 'Gui Qi and Gu Gui'. He used objects to express his aspirations and wrote, 'The divine work and the ghost axe have been chopped for a thousand years, and the chicken bones and peach blossoms are all natural', which is the most moving. Kunshi is as clear as jade, as full and moist as snow, and is known as one of the four traditional famous stones in our country with Taihu Stone, Lingbi Stone, and Ying Stone. It is also known as one of the three famous stones in the south of the Yangtze River with Rain Flower Stone and Taihu Stone. Kunshi is easy to break, the main component is silicon dioxide, in the crystal cave of the quartz vein, the crystal cluster formed is Kunshi. And the Kunshi produced in places like Gaoting Mountain in Hangzhou, Longyan in Fujian, and Langya Mountain in Anhui is called 'pseudo-Kunshi'. Kunshi is warm and elegant, exquisite and full of holes, full of elegance, with the charm of emptiness and the feeling of jade. The beauty of Kunshi, in the cloud head and rain foot, perfectly fits the stone appreciation concept of 'thin, wrinkled, leaky, transparent' and 'hump and drunk'. According to the texture of Kunshi crystal clusters and vein pieces, they are named Chicken Bone Peak, Snowflake Peak, Jellyfish Peak, Walnut Peak, Bayberry Peak, Bird Droppings Peak, etc.