Flower ghost crystal, also known as color ghost or vision crystal, is a special crystal, which is characterized by the inclusion of different colors of volcanic mud and other minerals in transparent white crystal, forming natural visions such as clouds, water plants, whirlpools and even pyramids and cornucopies. The colors of these inner inclusions can be green, red, white, yellow, etc., thus forming a variety of types such as green ghosts, red ghosts, white ghosts, and yellow ghosts.