Properties
Physical Properties
Hardness
5.5
6-7
Grain Size
Medium to Fine Coarse Grained
Fine to Coarse Grained
Fracture
Conchoidal
Conchoidal
Streak
Vermilion
White
Porosity
Less Porous
Very Less Porous
Luster
Resinous
Subvitreous to Dull
Compressive Strength
206.00 N/mm2
8
Not Available
Cleavage
Not Available
Conchoidal
Toughness
Not Available
Not Available
Specific Gravity
2.4
2.86-2.87
Transparency
Opaque
Translucent to Opaque
Density
3.058 g/cm3
2.95-2.96 g/cm3
Thermal Properties
Specific Heat Capacity
0.56 kJ/Kg K
22
0.92 kJ/Kg K
10
Resistance
Heat Resistant, Impact Resistant, Wear Resistant
Heat Resistant, Impact Resistant
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