Properties of Coal and Lignite

Coal

Lignite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1-1.51

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

1.1.3 Fracture

Conchoidal

1.1.4 Streak

Black

1.1.5 Porosity

Less Porous

Highly Porous

1.1.6 Luster

Dull to Vitreous to Submetallic

1.1.7 Compressive Strength

NANA

0.15 450

1.1.8 Cleavage

Non-Existent

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

1.1-1.41.1-1.4

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

1100-1400 g/cm³800-801 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

1.32 kJ/Kg K1.26 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant

Coal vs Lignite Properties

Properties of Coal and Lignite play an important role in determining the type of rock. Along with Coal vs Lignite properties, get to know more about Coal Definition and Lignite 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 Lignite.