Properties
Physical Properties
Hardness
3.5-46-7
1
7
👆🏻
Grain Size
Fine to Medium Grained
Medium Grained
Fracture
Conchoidal
Uneven, Splintery or Conchoidal
Streak
White to Grey
White
Porosity
Highly Porous
Less Porous
Luster
Dull
Vitreous
Compressive Strength
NA115.00 N/mm2
0.15
450
👆🏻
Cleavage
Slaty
Indiscernible
Toughness
1.5
1.9
Specific Gravity
3-3.22.6-2.8
0
8.4
👆🏻
Transparency
Opaque
Transparent to Translucent
Density
2.8-2.9 g/cm32.32-2.42 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
NA0.75 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Impact Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant