Zircon
Zircon is a natural gemstone known for its brilliance and wide range of colors. It is one of the oldest minerals on Earth and is often used as a diamond alternative.
About
Zircon
Zircon is a naturally occurring mineral composed of zirconium silicate. It is found in a variety of colors including colorless, blue, yellow, brown, red, and green. Colorless zircon is especially valued for its high brilliance and fire, making it a popular substitute for diamonds. This gemstone forms in igneous, metamorphic, and sedimentary rocks and is one of the oldest known minerals, with some crystals dating back over 4 billion years. Zircon has a high refractive index and strong dispersion, giving it exceptional sparkle. It typically has a hardness of 6 to 7.5 on the Mohs scale, making it suitable for jewelry with proper care.
Physical & Chemical Properties
| Name | Zircon |
|---|---|
| Scientific Name | Zircon |
| Mineral Group | Silicate Mineral (Nesosilicate group) |
| Hardness (Mohs) | 6 – 7.5 |
| Color | Colorless, blue, yellow, brown, red, green |
| Origin | Formed in igneous, metamorphic, and sedimentary rocks; one of the oldest minerals on Earth |
| Chemical Formula | ZrSiO₄ |
Quick Facts
| Crystal System | Tetragonal |
|---|---|
| Specific Gravity | 4.6 – 4.7 |
| Birthstone | December |
| Refractive Index | 1.81 – 2.02 |
| Optical Character | Uniaxial (+) |
| Dispersion | High (approx. 0.039) |
| Major Sources | Sri Lanka, Cambodia, Myanmar, Australia, Thailand |
| Treatments | Heat treatment (commonly used to enhance color and clarity) |
| Price Range | $20 - $1,500 |
| Care Instructions | Clean with mild soap and warm water; avoid harsh chemicals and ultrasonic cleaners; store separately to prevent scratches |