Many legends about quartz say that wearing tiger's eye (which is a form of quartz) is beneficial for health and spiritual well being. Legend also says it is a psychic protector, great for business, and an aid to achieving clarity.
Tiger's Eye is the Planetary stone for Gemini (May 21-Jun. 20) and the accepted gem for the ninth wedding anniversary.
Tiger's eye (tigers eye, tiger eye ) is a member of the quartz group of chalcedonies. It is one of the chatoyant gemstones. Chatoyancy exhibits a changeable silky lustre as light is reflected within the thin parallel fibrous bands. This effect is due to the fibrous structure of the material.