Properties of Coal and Pseudotachylite

Coal

Pseudotachylite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1-1.57

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

Very fine-grained

1.1.3 Fracture

Conchoidal

Uneven

1.1.4 Streak

Black

Light to dark brown

1.1.5 Porosity

Less Porous

1.1.6 Luster

Dull to Vitreous to Submetallic

Vitreous

1.1.7 Compressive Strength

NA60.00 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Irregular

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

1.1-1.42.46-2.86

0 8.4

1.1.11 Transparency

Opaque

Transparent to Translucent

1.1.12 Density

1100-1400 g/cm³2.7-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

1.32 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant

Coal vs Pseudotachylite Properties

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