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Physical Properties of Niobium and Holmium

Niobium
Holmium
Physical Properties of Holmium and Niobium


Physical Properties
Melting Point
2,468.00 °C   
6
1,461.00 °C   
30
Boiling Point
2,468.00 °C   
99+
2,600.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray   
Silvery White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.00   
6
Not Available   
Brinell Hardness
735.00 MPa   
14
746.00 MPa   
13
Vickers Hardness
870.00 MPa   
12
481.00 MPa   
23
Speed of Sound
3,480.00 m/s   
21
2,760.00 m/s   
30
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
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