| PARAMETER | VALUE |
| 透过范围Transmission range (µm) | 0.11~7.5 |
| 折射率Refractivity (0.7µm) | no=1.37608 ne=1.38771 |
| 密度Density(g/cm3) | 3.177 |
| 熔点Melting Point(℃) | 1255 |
| 解理面Cleavage plane | [110] |
| 膨胀系数Expansion coefficent/℃-1 | 13.7x10-6(para), 8.9x10-6(perp) |
| 热导率Thermal conductivity (Wm-1K-1) | 0.3@300K |
| 努普硬度Knoop hardness(kg/mm2) | 415 |
| 弹性常数Elastic constants | C11=140.2 C12=89.5 C44=56.8 |
| 杨氏模量Youngs Modulus/Gpa | 169.1(para), 79.7(perp) |
| 溶解度Solubility in 100g water(g) at 0°C | 0.0002g/100g water at 0 °C |