Physical Properties
Hardness
36-7
1
7
👆🏻
Grain Size
Medium to Fine Coarse Grained
Medium Grained
Fracture
Conchoidal
Uneven, Splintery or Conchoidal
Streak
White
White
Porosity
Less Porous
Less Porous
Luster
Subvitreous to Dull
Vitreous
Compressive Strength
195.00 N/mm2115.00 N/mm2
0.15
450
👆🏻
Cleavage
-
Indiscernible
Toughness
1
1.9
Specific Gravity
2.86-2.872.6-2.8
0
8.4
👆🏻
Transparency
Opaque
Transparent to Translucent
Density
2.84-2.86 g/cm32.32-2.42 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.84 kJ/Kg K0.75 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Heat Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant