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White Zircon is the birthstone for Libra & is a birthstone for December. Zircon is one of the oldest minerals on Earth, and was first found in Australia 4.4 billon years ago.
- MINERAL: Zirconium Silicate
- COLOR: Colorless, yellow, brown, red, orange, green, and blue
- REFRACTIVE INDEX: 1.180-2.024
- BIREFRINGENCE: 0.036-0.065
- SPECIFIC GRAVITY: 3.90-4.73
- MOHS HARDNESS: 6.0 to 7.5