Blue Zircon is sometimes referred to as starlite and is best known as the December birthstone.
Blue zircon is often produced commercially by heat treating colored zircon.
Blue Zircon
Blue Zircon Chemical Formula Composition: Zr1,Sio4
(Zr1 = 1 Zirconium atom)
(Si04 = 4 Silicon Dioxide atoms)
Blue Zircon Color: Blue
Blue Zircon Double Refraction Velocity Range
Ordinary Ray Velocity: 2.01
Extraordinary Ray Velocity: 1.96
Blue Zircon Density: 6.0 to 7.5(g/cm3 = Grams per cubic centimeter)
Mohs Hardness Scale for Blue Zircon: 4.7
