Why does Tian Heng inkstone crack?

It is caused by geological changes, and ice lines and gold and silver lines are formed after stone cracks heal.

Inkstone, together with pen, ink and paper, is also called the traditional Four Treasures of the Study in China, and it is an essential tool for China's calligraphy.

Ink stone, pen, ink and paper are the traditional Four Treasures of the Study in China, and they are the necessary tools for China's calligraphy. The inkstone is not only the stationery of the study, but also a rare collection of literati in past dynasties because of its solid nature and immortality. The materials of inkstone platform are rich and varied, besides red stone, end stone, rolling stone, peach and stone, mud stone, Xugong inkstone, Yishui inkstone, turquoise, strange stone and chrysanthemum stone, there are dozens of kinds of jade inkstone, jade miscellaneous stone inkstone, tile inkstone, lacquer sand inkstone, iron inkstone and porcelain inkstone.