Properties of Pumice and Lignite

Pumice

Lignite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1 7

1.1.2 Grain Size

Fine Grained

Medium to Fine Coarse Grained

1.1.3 Fracture

Planar

Conchoidal

1.1.4 Streak

White, Greenish White or Grey

Black

1.1.5 Porosity

Highly Porous

1.1.6 Luster

Earthy

Dull to Vitreous to Submetallic

1.1.7 Compressive Strength

51.20 N/mm²NA

0.15 450

1.1.8 Cleavage

Perfect

Non-Existent

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

2.861.1-1.4

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

0.25-0.3 g/cm³800-801 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.87 kJ/Kg K1.26 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Impact Resistant, Pressure Resistant

Heat Resistant

Pumice vs Lignite Properties

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