Physical Properties of Erbium and Beryllium
Melting Point
1,522.00 °C
  
28
1,278.00 °C
  
36
Boiling Point
2,510.00 °C
  
99+
2,970.00 °C
  
32
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery White
  
White Gray
  
Luster
Lustrous
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Vickers Hardness
1,670.00 MPa
  
4
Speed of Sound
2,830.00 m/s
  
28
12,890.00 m/s
  
2
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available