Physical Properties
Hardness
3.5-41-2
1
7
👆🏻
Grain Size
Medium to Fine Coarse Grained
Medium to Fine Coarse Grained
Fracture
Conchoidal
Conchoidal
Streak
White
White
Porosity
Less Porous
Highly Porous
Luster
Vitreous and Pearly
Phyllitic
Compressive Strength
140.00 N/mm250.00 N/mm2
0.15
450
👆🏻
Cleavage
Perfect
Crenulation and Pervasive
Toughness
1
1.2
Specific Gravity
2.8-32.72-2.73
0
8.4
👆🏻
Transparency
Transparent to Translucent
Opaque
Density
2.8-2.9 g/cm32.18-3.3 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K0.79 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant, Water Resistant