Properties
Physical Properties
Hardness
6-7
6-7
Grain Size
Medium to Fine Coarse Grained
Coarse Grained
Fracture
Not Available
Not Available
Streak
White
White
Porosity
Less Porous
Less Porous
Luster
Subvitreous to Dull
Dull to Grainy with Sporadic parts Pearly and Vitreous
Compressive Strength
310.00 N/mm2
2
175.00 N/mm2
13
Cleavage
Not Available
Not Available
Toughness
Not Available
Not Available
Specific Gravity
2.8-3
2.6-2.7
Transparency
Opaque
Opaque
Density
2.9-2.91 g/cm3
2.6-2.8 g/cm3
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K
10
0.79 kJ/Kg K
16
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Wear Resistant
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