1 Properties
1.1 Physical Properties
1.1.1 Hardness
1.1.2 Grain Size
Medium to Fine Coarse Grained
Very fine-grained
1.1.3 Fracture
Conchoidal
Uneven, Splintery or Conchoidal
1.1.4 Streak
1.1.5 Porosity
Highly Porous
Highly Porous
1.1.6 Luster
Dull to Vitreous to Submetallic
Waxy and Dull
1.1.7 Compressive Strength
1.1.8 Cleavage
Non-Existent
Non-Existent
1.1.9 Toughness
1.1.10 Specific Gravity
1.1.11 Transparency
Opaque
Translucent to Opaque
1.1.12 Density
800-801 g/cm32.7 g/cm3
0
1400
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
1.26 kJ/Kg K0.74 kJ/Kg K
0.14
3.2
1.2.2 Resistance
Heat Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant