Iolite has been used by shamans to enhance their ability to have clear visions. Some legends even say iolite strengthens eyesight. Other metaphysical beliefs hold that iolite promotes pure thoughts, intuition and self-acceptance. Iolite is associated with the zodiac signs Libra, Sagittarius and Taurus.
Cordierite or iolite is a magnesium iron aluminium cyclosilicate