naturally occurring rock composed of seven specific minerals: amethyst
the treated stones are cut
laced with bands or swirls of brighter blue
colorless inclusions
with striking patterns of parallel banding
Blue Nepal Kyanite 3x6-5x8mm Grauated Faceted Rondelle Necklace - 15-16 Inch Pliers naturally occurring rock composed ofKyanite 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