Physical Properties of Gold and Roentgenium
Melting Point
1,064.43 °C
  
99+
Not Available
  
Boiling Point
2,807.00 °C
  
36
Not Available
  
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Gold
  
Silver
  
Luster
Metallic
  
Unknown Luster
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
194.00 MPa
  
99+
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
2,030.00 m/s
  
99+
Not Available
  
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