Helan Stone, also known as Auspicious Stone and Bizi Stone, is the first of the five treasures in Ningxia. Helan stone is famous all over the world and is known as the "blue treasure" of Ningxia.

Helan stone was formed1300 million years ago due to crustal changes and sediment deposition, and belongs to water rock. The texture is even and delicate, elegant and shiny, blue and purple, naturally staggered, rigid and soft, and the sound of knocking. It has a uniform structure, delicate texture, and combines rigidity with softness. The color is elegant and shiny, green with purple, and purple with green. Purple and green are naturally intertwined, with jade belts, moire patterns, eyebrows and stone eyes. This is a rare stone carving.

He Lan Yan, carved by skilled craftsmen, has the characteristics of ink delivery, ink storage, hair care and durability. After stamping, the ink in the inkstone will not dry for several days, and the sculptor will carve according to the stone and carefully use the materials.