Properties
Physical Properties
Hardness
6.5
2-3
Grain Size
Fine Grained
Medium to Fine Coarse Grained
Fracture
Conchoidal
Conchoidal
Streak
White
White
Porosity
Less Porous
Less Porous
Luster
Subvitreous to Dull
Subvitreous to Dull
Compressive Strength
290.00 N/mm2
3
225.00 N/mm2
7
Cleavage
Perfect
Perfect
Toughness
2.7
Not Available
Specific Gravity
2.86
2.86-2.99
Transparency
Opaque
Translucent
Density
2.8-2.9 g/cm3
2.8-2.9 g/cm3
Thermal Properties
Specific Heat Capacity
0.95 kJ/Kg K
9
0.92 kJ/Kg K
10
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant
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