Density, g/cm3

3.74

Mohs hardness

7.5

Thermal capacity, J/kg´K

0.8

Thermal conductivity, W/m´K

12.5

Yong module ´109n/m2

381

Puasson module

0.24

Cr-concentration, at. %

0.05-0.3

Fluorescence range, mm

0.7-1.1

Oscillation maximum, mm

0.83

Lifetime, ms

13.5

Transition cross-section, 10-20cm2

6.0

Lasing range

0.73 – 0.95