Properties of Coal and Pumice
Grain Size
Medium to Fine Coarse Grained
Fine Grained
Fracture
Conchoidal
Planar
Streak
Black
White, Greenish White or Grey
Porosity
Less Porous
Highly Porous
Luster
Dull to Vitreous to Submetallic
Earthy
Compressive Strength
Not Available
Cleavage
Non-Existent
Perfect
Toughness
Not Available
3
Specific Gravity
1.1-1.4
2.86
Transparency
Opaque
Opaque
Density
1100-1400 g/cm3
0.25-0.3 g/cm3
Resistance
Heat Resistant
Impact Resistant, Pressure Resistant
Coal vs Pumice Properties
Properties of Coal and Pumice play an important role in determining the type of rock. Along with Coal vs Pumice properties, get to know more about Coal Definition and Pumice Definition. For the ease of understanding, the properties of rocks are divided into physical and thermal properties. Rocks have a variety of properties like hardness, color, specific gravity, fracture, cleavage, luster etc. Know all about physical and thermal properties of Coal and Pumice.