Properties
Physical Properties
Hardness
6-7
5-6
Grain Size
Medium to Coarse Grained
Fine to Coarse Grained
Fracture
Not Available
Conchoidal
Streak
White
White
Porosity
Very Less Porous
Very Less Porous
Luster
Vitreous
Subvitreous to Dull
Compressive Strength
175.00 N/mm2
13
Not Available
Cleavage
Imperfect
Conchoidal
Toughness
Not Available
Not Available
Specific Gravity
2.8-3.0
2.86-2.87
Transparency
Opaque
Translucent to Opaque
Density
3.06-3.33 g/cm3
2.95-2.96 g/cm3
Thermal Properties
Specific Heat Capacity
0.14 kJ/Kg K
26
Not Available
Resistance
Heat Resistant, Wear Resistant
Heat Resistant, Impact Resistant
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