Properties
Physical Properties
Hardness
6-75.5-6
1
7
👆🏻
Grain Size
Medium to Fine Coarse Grained
Coarse Grained
Fracture
Conchoidal
Irregular
Streak
Bluish Black
White
Porosity
Very Less Porous
Less Porous
Luster
Subvitreous to Dull
Shiny
Compressive Strength
NANA
0.15
450
👆🏻
Cleavage
Not Available
Not Available
Toughness
2.1
2.1
Specific Gravity
2.86-33-3.01
0
8.4
👆🏻
Transparency
Opaque
Translucent to Opaque
Density
2.73 g/cm33.1-3.4 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K1.25 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant, Wear Resistant