Physical Properties of Tungsten and Technetium
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Grayish White
  
Shiny Gray
  
Luster
Lustrous
  
NA
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
2,000.00 MPa
  
4
Not Available
  
Vickers Hardness
3,430.00 MPa
  
1
Not Available
  
Speed of Sound
4,620.00 m/s
  
16
16,200.00 m/s
  
1
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available