Crystal symmetry: 2/m
Density: 7,1 g/cm^3
Optical spectral range: 0,4 - 5 mkm
Elastic constants 
: 10^11 dyn/cm^2 or 10^10 Pa)
| -- | -- | -- | 0 | -- | 0 |
| -- | -- | -- | 0 | -- | 0 |
| -- | -- | -- | 0 | -- | 0 |
| 0 | 0 | 0 | -- | 0 | -- |
| -- | -- | -- | 0 | -- | 0 |
| 0 | 0 | 0 | -- | 0 | -- |
Photolastic constants 
:
| -- | 0.249 | -- | 0 | -- | 0 |
| -- | 0.117 | -- | 0 | -- | 0 |
| -- | 0.144 | -- | 0 | -- | 0 |
| 0 | 0 | 0 | -- | 0 | -- |
| -- | -- | -- | 0 | -- | 0 |
| 0 | 0 | 0 | -- | 0 | -- |
Refraction indices:
The values for refraction coefficients for the given optical wavelengths:
| wavelength, mkm | refraction index X axis | refraction index Y axis | refraction index Z axis |
|---|
| 0.45 | 2.271 | 2.277 | 2.432 |
|---|
| 0.5 | 2.229 | 2.235 | 2.376 |
|---|
| 0.55 | 2.201 | 2.207 | 2.34 |
|---|
| 0.6 | 2.181 | 2.188 | 2.314 |
|---|
| 0.65 | 2.166 | 2.173 | 2.296 |
|---|
| 0.7 | 2.154 | 2.162 | 2.281 |
|---|
Sound velocity:
| direction | polarization | v (10^5 cm/s) |
|---|
| [100] | L | 2.95 |
| [010] | L | 3.26 |
| [001] | L | 3.28 |
Double lead molibdate slowness surfaces in important planes
Acousto-optic figure of merit:
| sound dir. | sound pol. | light dir. | light pol. | M (10^-18 s^3/g) |
|---|
| [100] | L | [001] | [100] | 59.9 |
| [100] | L | [001] | [010] | 127 |
| [100] | L | [010] | [001] | 20.9 |
| [010] | L | [001] | [100] | 26.3 |
| [010] | L | [100] | [001] | 12.5 |
| [001] | L | [010] | [100] | 2.42 |
| [001] | L | [100] | [010] | 8.99 |
| [001] | L | [010] | [001] | 65.3 |
