| Formula | SiO2 |
| Crystal Growth | |
| Growth Method | hydrothermal |
| Max. Diameter (mm) | 100 x 100 |
| Crystallographic Properties | |
| Crystal Structure Lattice Constant (nm) |
trigonal a= 0.49124 c= 0.54039 |
| Color | colorless |
| Physical Properties | |
| Density (g/cm3) | 2.65 |
| Melting Point (K) | 1973 |
| Thermal Conductivity (W • m-1K-1) | 10.7 ǁ c, 6.2 ⊥ c (at 323 K) |
| Thermal Expansion (10-6K-1) | a11 = 13.71, a33 = 7.48 |
| Dielectric Constant | 4.34 ǁ c, 4.27 ⊥ c (at 30 MHz) |
| Elastic Coefficients | c11=87 c12=7 c44=58 c13=13 c14=(-)18 c33=106 |
| Specific Heat Capacity (J •kg-1K ) | 710 |
| Hardness (Mohs) | 7 |
