Angel Feather Fluorite Multi-color type Approximately 6.5mm Inner circumference: Approximately 16cm "Stone of Genius" Fluorite is said to be good for mental and physical healing, stress relief, improved concentration and creativity, mental stability, and improved intellectual ability. Green... Thinking ability and health luck Pink... Love luck Purple... Cool analytical ability Blue... Healing and calmness It is also called the "Stone of Genius" for dissolving negative emotions and generating new ideas.