The common colors of zircon are colorless, 파란색, 노란색, 녹색, 갈색, 빨간색, 그리고 보라색. According to the degree of crystallinity, zircon can be divided into three varieties: high type, medium type and low type. The refractive index, 밀도, and hardness value gradually increase from low type to high type. High-type zircon has a high birefringence, […]
