Properties of Slate and Coal
Properties
Physical Properties
Hardness
3-4
1-1.5
Grain Size
Very fine-grained
Medium to Fine Coarse Grained
Fracture
Splintery
Conchoidal
Streak
Light to dark brown
Black
Porosity
Less Porous
Less Porous
Luster
Dull
Dull to Vitreous to Submetallic
Compressive Strength
30.00 N/mm2
30
Not Available
Cleavage
Slaty
Non-Existent
Toughness
1.2
Not Available
Specific Gravity
2.65-2.8
1.1-1.4
Transparency
Opaque
Opaque
Density
2.6-2.8 g/cm3
1100-1400 g/cm3
Thermal Properties
Specific Heat Capacity
0.76 kJ/Kg K
17
1.32 kJ/Kg K
4
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant
Slate vs Coal Properties
Properties of Slate and Coal play an important role in determining the type of rock. Along with Slate vs Coal properties, get to know more about Slate Definition and Coal 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 Slate and Coal.
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