Introduction to the No. 1 Dragon Inkstone in the World: The "Sun and Moon Glowing Dragon and Phoenix Inkstone" located in Wenbao Courtyard is known as the No. 1 Dragon Inkstone in the world with a total price of 76.57 million yuan. . The dragon inkstone is carved from the alexandrite stone from Xiangzi Cave of Gubai Temple on the south bank of Yishui, Hebei Province. It is fine in texture, hard but not brittle, smooth and moist, easy to ink, and does not damage the ends. It is the best treasure among inkstones. The total estimated value is is 76.57 million yuan.