1 Properties
1.1 Physical Properties
1.1.1 Hardness
1.1.2 Grain Size
Coarse Grained
Coarse Grained
1.1.3 Fracture
Conchoidal to Uneven
Irregular
1.1.4 Streak
Light to dark brown
White
1.1.5 Porosity
Highly Porous
Less Porous
1.1.6 Luster
Grainy, Pearly and Vitreous
Shiny
1.1.7 Compressive Strength
1.1.8 Cleavage
1.1.9 Toughness
1.1.10 Specific Gravity
1.1.11 Transparency
Opaque
Translucent to Opaque
1.1.12 Density
2.2-2.35 g/cm33.1-3.4 g/cm3
0
1400
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
0.75 kJ/Kg K1.25 kJ/Kg K
0.14
3.2
1.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Pressure Resistant, Wear Resistant