1 Properties
1.1 Physical Properties
1.1.1 Hardness
1.1.2 Grain Size
Medium to Fine Coarse Grained
Coarse Grained
1.1.3 Fracture
Uneven
Conchoidal to Uneven
1.1.4 Streak
Bluish Black
Light to dark brown
1.1.5 Porosity
Very Less Porous
Highly Porous
1.1.6 Luster
Subvitreous to Dull
Grainy, Pearly and Vitreous
1.1.7 Compressive Strength
1.1.8 Cleavage
Crenulation and Pervasive
Not Available
1.1.9 Toughness
1.1.10 Specific Gravity
1.1.11 Transparency
1.1.12 Density
2.8-2.9 g/cm32.2-2.35 g/cm3
0
1400
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
0.92 kJ/Kg K0.75 kJ/Kg K
0.14
3.2
1.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant