Tortoise Veins Stone, known as Guiwen Stone, is the fossil of an ancient life-form, and the craftsmen use it to create stone carvings in different shapes such as tortoises, cattle, horses, or dragons.
The unique arts craft of tortoise veined stone is formed on
Tianzi Mountain in
Zhangjiajie about 0.2 billion years ago. People call it tortoise stone because there are veins similar to that of tortoise. Most of the veined stone are made in the shape of tortoise and can be used as ink stone.