Kyanite 3-5mm Graduated Faceted Rondelle - 15-16 Inch high-end-collar It forms when Quartz and

It forms when Quartz and Feldspar crystallize in radial aggregates within other silica to rich stones

and can be red to reddish brown

famous for producing nuggets in a wide color range from pale blue to dark green

as a gemstone that is cut into many shapes and often given a high polish

periwinkle

Kyanite 3-5mm Graduated Faceted Rondelle - 15-16 Inch high-end-collar It forms when Quartz andKyanite 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