Characteristics of Zircon:

Chemical Name: Zirconium silicate

Formula: ZrSiO₄ 

Colors: Reddish brown, yellow, green, blue, grey, colorless

Structure: Tetragonal

Hardness: 6.5-7.5

Specific Gravity: 3.9-4.7

Refractive Index: 1.81-2.02

Lustre: Vitreous to brilliant sheen

Streak: White

Locations: Australia, Myanmar, Cambodia, Tanzania

What is Zircon? 

Some Zircon material is 4.4 billion years old, making it the oldest-known mineral on earth. It is a colorful gem with high refraction and fire. Colorless Zircon is known for its luminescence and reflective flashes of multicolored light, Zircon is known for its luminescence and reflective flashes of multicolored light, and is often used in jewelry as an substitute for diamonds. Vibrant blue Zircons are produced by heat-treating the more common brown stones. The mineral sometimes contains traces of uranium and thorium, and this natural radioactivity can disrupt the crystal structure, causing changes to color, density, RI and double refraction.