1 Properties
1.1 Physical Properties
1.1.1 Hardness
1.1.2 Grain Size
Coarse Grained
Medium to Fine Coarse Grained
1.1.3 Fracture
Conchoidal to Uneven
Conchoidal
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
Vitreous and Pearly
1.1.7 Compressive Strength
1.1.8 Cleavage
1.1.9 Toughness
1.1.10 Specific Gravity
1.1.11 Transparency
Opaque
Transparent to Translucent
1.1.12 Density
2.2-2.35 g/cm32.8-2.9 g/cm3
0
1400
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
0.75 kJ/Kg K0.92 kJ/Kg K
0.14
3.2
1.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Pressure Resistant, Wear Resistant