Basic info about Kyanite
Color: Blue, blue-green, brown
Moh's Hardness: axes 4-4.5, across 6-7
Crystal System: Triclinic
Chemical Comp.: Al2SiO5
Transparency: Transparent, translucent
Density: 3.53-3.70
Refractive Index: 1.710-1.734
Luster: Vitreous to pearly
Kyanite is derived from the Greek "Kyanos" meaning "blue.” The most popular varieties display intense cornflower blues similar to sapphire, and sparkling greenish-blues reminiscent of aquamarine.
Kyanite is a rare polymorph that displays two hardness’s within one gem. Like Diamonds, Kyanite has the unique characteristic of perfect cleavage in one direction. This combined with its varying hardness, makes Kyanite a challenging gem to cut.
Occurring in a wide variety of locations around the world, the best quality Kyanite is found in the Kali Gandaki Region of West Central Nepal and Tibet.
Kyanite is said to inspire calmness, composure, serenity, loyalty and respect. It is used by alternative healers as a tool for mediation and relaxation. It also enhances creativity, broadens perception, aids in reaching a better understanding of others, fosters tranquility, and has a positive effect on dreams, visualization and foresightedness.