What is Zircon?
Zircon is a mineral belonging to the group of nesosilicates. It’s primarily found in Australia, Thailand, and Sri Lanka. Zircon is often used as a gemstone and is popular for its high refractive index and range of colors, including colorless, yellow, red, and blue.
Zircon is a versatile gemstone that comes in a variety of colors, often including colorless, yellow, red, and blue. Its high refractive index gives it exceptional brilliance, making it a popular choice for jewelry such as rings and pendants.
|Chemical Classification||Inorganic - Zirconium silicate|
|Color||Comes in a variety of colors, including blue, red, yellow, green, and clear. Blue is the most popular.|
|Luster||Vitreous to adamantine.|
|Transparency||Typically transparent, but can be opaque in some varieties.|
|Occurrence||Australia, Sri Lanka, and Cambodia.|
|Formation||Zircon crystals form in igneous rocks and have been found in sedimentary deposits.|
|Cleavage||Perfect in two directions|
|Mohs Hardness||6.5 - 7.5.|
|Specific Gravity||Approximately 3.93 - 4.73, but can vary based on type and treatment.|
|Diagnostic Properties||High refractive index, often heat treated.|
|Pleochroism||Weak to strong, depending on the color of the Zircon.|
|Optical Properties||Uniaxial (+)|
|Refractive Index||1.810 - 2.024|
|2V angle||Measured: 78° to 82°|
|Dispersion||0.039, which is very high and contributes to Zircon's fire.|