Physical Properties
Hardness
1-21-2
1
7
👆🏻
Grain Size
Medium to Fine Coarse Grained
Medium to Fine Coarse Grained
Fracture
Conchoidal
Conchoidal
Streak
White
White
Porosity
Highly Porous
Highly Porous
Luster
Phyllitic
Phyllitic
Compressive Strength
50.00 N/mm250.00 N/mm2
0.15
450
👆🏻
Cleavage
Crenulation and Pervasive
Crenulation and Pervasive
Toughness
1.2
1.2
Specific Gravity
2.72-2.732.72-2.73
0
8.4
👆🏻
Transparency
Opaque
Opaque
Density
2.18-3.3 g/cm32.18-3.3 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.79 kJ/Kg K0.79 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Heat Resistant, Pressure Resistant, Water Resistant
Heat Resistant, Pressure Resistant, Water Resistant