Properties
Physical Properties
Hardness
4-5
5.5-6
Grain Size
Fine to Medium Grained
Medium to Fine Coarse Grained
Fracture
Conchoidal
Not Available
Streak
White to Grey
White
Porosity
Highly Porous
Less Porous
Luster
Metallic
Subvitreous to Dull
Compressive Strength
Not Available
150.00 N/mm2
14
Cleavage
Not Available
Perfect
Toughness
Not Available
Not Available
Specific Gravity
2.0
2.6-2.7
Transparency
Opaque
Opaque
Density
Not Available
2.6-2.8 g/cm3
Thermal Properties
Specific Heat Capacity
0.24 kJ/Kg K
24
0.92 kJ/Kg K
10
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Wear Resistant
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