Properties of Coal and Slate
Grain Size
Medium to Fine Coarse Grained
Very fine-grained
Fracture
Conchoidal
Splintery
Streak
Black
Light to dark brown
Porosity
Less Porous
Less Porous
Luster
Dull to Vitreous to Submetallic
Dull
Compressive Strength
Not Available
Cleavage
Non-Existent
Slaty
Toughness
Not Available
1.2
Specific Gravity
1.1-1.4
2.65-2.8
Transparency
Opaque
Opaque
Density
1100-1400 g/cm3
2.6-2.8 g/cm3
Resistance
Heat Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Coal vs Slate Properties
Properties of Coal and Slate play an important role in determining the type of rock. Along with Coal vs Slate properties, get to know more about Coal Definition and Slate 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 Slate.