The kyanite belongs to the disthene family, whose name is made up of "dis" ("two") and "sthenos" (strength/hardness). This refers to the two different hardnesses that this gem has from one end to the other.
The kyanite itself belongs to the hal chakra. Positive properties such as promoting concentration and intuitive and reasonable thinking are attributed to it. In stressful situations, the blue kyanite ensures that you keep calm and can make decisive decisions with a cool head.
