Blue Kyanite 5x10-20mm Top Drill Teeth - 15-16 Inch 15x30 Opalite is the trade name

Opalite is the trade name for man to made glass treated to exhibit the internal flashes of true Opals in translucent samples

and may also be referred to as Jacktree

and features dark manganese dendrites throughout

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Blue Kyanite 5x10-20mm Top Drill Teeth - 15-16 Inch 15x30 Opalite is the trade nameKyanite 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