Kyanite

Kyanite, as a Healing Crystal, promotes Loyalty, Honesty and Tranquility, and diminishes anger and confusion.
Kyanite is a typically blue silicate mineral, commonly found in aluminium-rich metamorphic pegmatites. Kyanite is used primarily in refractory and ceramic products, including porcelain plumbing fixtures and dishware. It is also used in electronics, electrical insulators and abrasives.