Magnesium Fluoride
1MgO 3Al2O3:Co Co doped (blue)
MgAl2O4:Co2+
Magnesium Aluminium Spinell

Dimensions of crystals, mm

 

 

Length

70

 

Diameter

30

 

Syngony

cubic

 

Spatial group

Fd3m

 

Elementary cell parameters, nm

0.8086

 

Modulus of elasticity

2.3´105

 

Density, g/cm3

3.58

 

Mohs hardness

8-9

 

Melting point, °C

2105

 

Refraction index

1.718-1.75

 

CoO concentration, mass.%

0.05-0.3