Properties
Physical Properties
Hardness
6-7
3
Grain Size
Coarse or Fine
Medium to Fine Coarse Grained
Fracture
Splintery
Conchoidal
Streak
White
White
Porosity
Highly Porous
Less Porous
Luster
Dull
Subvitreous to Dull
Compressive Strength
95.00 N/mm2
20
Not Available
Cleavage
Perfect
Not Available
Toughness
2.6
1
Specific Gravity
2.2-2.8
2.86-2.87
Transparency
Opaque
Opaque
Density
2.2-2.8 g/cm3
2.84-2.86 g/cm3
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K
10
Not Available
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Pressure Resistant, Water Resistant
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