1 Properties
1.1 Physical Properties
1.1.1 Hardness
1.1.2 Grain Size
Fine to Medium Grained
Fine Grained
1.1.4 Fracture
1.1.5 Streak
Bluish Black
White, Greenish White or Grey
1.1.7 Porosity
Less Porous
Highly Porous
1.1.9 Luster
Grainy, Pearly and Vitreous
Earthy
1.1.10 Compressive Strength
1.1.14 Cleavage
1.1.15 Toughness
1.1.16 Specific Gravity
1.1.20 Transparency
1.1.21 Density
Not Available0.25-0.3 g/cm3
0
1400
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
1.3.2 Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Impact Resistant, Pressure Resistant