Kyanite 2-3x3-5mm Graduated Irregular Rondelle Beads - 15-16 Inch Size_6-12x10-22mm as well as brown to

as well as brown to reddish brown or red in color

and is a result of trace amounts of copper or chromium

layered appearance in various colors

fluorannite

Kyanite 2-3x3-5mm Graduated Irregular Rondelle Beads - 15-16 Inch Size_6-12x10-22mm as well as brown toKyanite often occurs as long, bladed, striated crystals, transparent or translucent with a pearly luster. An aluminum silicate mineral, it may appear in white, pink, yellow, orange, green, blue, gray and black. In addition to its value as a gemstone, Kyanite is also extremely useful in industrial applications due to its high heat resistance. It is often used in kiln furniture and foundry molds, as well as for brake shoes, grinding wheels and cutting