Worth some money. Nihe stone in Yangyuan is not an ordinary stone, but a sheep liver stone and agate, which is registered as "Nihe stone" locally. "Nihe Stone" is favored by foreign tourists because of its high hardness, good water head and rich colors. Among them, the blue-purple agate is rare at home and abroad, and some of them reach the gem level, so it has become the new favorite of stone appreciators, so the Nihe stone in Yangyuan is valuable. Agate is a chalcedony mineral, which is often a banded block mixed with opal and aphanitic.