Properties of Coal and Pumice

Coal

Pumice

Add ⊕

1 Properties

1.1 Physical Properties

1.1.1 Hardness

1-1.56

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

Fine Grained

1.1.3 Fracture

Conchoidal

Planar

1.1.4 Streak

Black

White, Greenish White or Grey

1.1.5 Porosity

Less Porous

Highly Porous

1.1.6 Luster

Dull to Vitreous to Submetallic

Earthy

1.1.7 Compressive Strength

NA51.20 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Perfect

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

1.1-1.42.86

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

1100-1400 g/cm³0.25-0.3 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

1.32 kJ/Kg K0.87 kJ/Kg K

0.14 3.2

1.2.2 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.