Kyanite is a silicate mineral whose name is derived from the Greek word kyanos, meaning blue. This blue mineral can also appear to be white, grey, black or green. It is believed that kyanite will help you understand life lessons and tap into your creative side with art, dance and writing. It is also known to deflect negative energy to bring serenity and inner peace. This stone is thought to be good for communication, mental awareness, meditation, and dream recall.
Due to differing atom concentrations and orientations amongst crystal structures, most gems' hardness rankings can somewhat vary from crystal to crystal within a specific gem classification. Kyanite's identifying characteristic, however, is that it is uniquely anisotropic, which means its hardness often varies widely in the same crystal. For this reason, kyanite ranges 4.5-6.5 on the Mohs Hardness Scale.
As a gemstone, kyanite has been somewhat limited by its varying and unusual hardness ranking. Regardless, it has a lovely appearance when used in jewelry. Notable occurrences include Brazil, Switzerland, Russia, Serbia, India, Kenya, and in the southern United States.