1 Properties
1.1 Physical Properties
1.1.1 Hardness
1.1.2 Grain Size
Fine Grained
Fine to Medium Grained
1.1.3 Fracture
1.1.4 Streak
Light to dark brown
Bluish Black
1.1.5 Porosity
1.1.6 Luster
Earthy
Grainy, Pearly and Vitreous
1.1.7 Compressive Strength
1.1.8 Cleavage
1.1.9 Toughness
1.1.10 Specific Gravity
1.1.11 Transparency
1.1.12 Density
2.9-3.1 g/cm3Not Available
0
1400
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
1.2.2 Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant, Wear Resistant