On cut or polished stones
It is frequently fluorescent under ultraviolet light
resembling small potatoes
these faceted rondelles can flash shades of green
Green Apatite is a transparent to translucent stone that may be green
Blue Nepal Kyanite 2x4-3x5mm Graduated Faceted Rondelle Necklace - 15-16 Inch Iron Zebra Jasper On cut or polished stonesKyanite 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