Physical Properties of Rhenium and Mercury
Melting Point
Not Available
  
Appearance
  
  
Physical State
Solid
  
Liquid
  
Color
Silvery Gray
  
Silver
  
Luster
Metallic
  
NA
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
1,320.00 MPa
  
8
Not Available
  
Vickers Hardness
1,350.00 MPa
  
7
Not Available
  
Speed of Sound
4,700.00 m/s
  
15
1,451.40 m/s
  
99+
Optical Properties
  
  
Refractive Index
Not Available
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available