Properties
Physical Properties
Hardness
6-7
5-5.5
Grain Size
Medium to Fine Coarse Grained
Not Applicable
Fracture
Not Available
Conchoidal
Streak
White
White
Porosity
Less Porous
Very Less Porous
Luster
Subvitreous to Dull
Vitreous
Compressive Strength
310.00 N/mm2
2
0.15 N/mm2
33
Cleavage
Not Available
Non-Existent
Toughness
Not Available
Not Available
Specific Gravity
2.8-3
2.6-2.7
Transparency
Opaque
Translucent
Density
2.9-2.91 g/cm3
2.6 g/cm3
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K
10
0.92 kJ/Kg K
10
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Impact Resistant
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