Kyanite in Quartz with Custom StandKyanite, is derived from the Greek work "kyanos", meaning deep blue. It is a blue silicate mineral, commonly found in aluminum rich metamorphic pegmatites and or sedimentary rock. Kyanite in metamorphic rocks generally indicates pressures higher than 4 kilobars. Although potentially stable at lower pressure and low temperature, the activity of water is usually high enough under such conditions that it is replaced by hydrous aluminosilicates such as