Properties of Pegmatite and Coal

Pegmatite

Coal

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

71-1.5

1 7

1.1.2 Grain Size

Medium to Coarse Grained

Medium to Fine Coarse Grained

1.1.3 Fracture

Conchoidal

1.1.4 Streak

White

Black

1.1.5 Porosity

Less Porous

1.1.6 Luster

Grainy, Pearly and Vitreous

Dull to Vitreous to Submetallic

1.1.7 Compressive Strength

178.54 N/mm²NA

0.15 450

1.1.8 Cleavage

Perfect

Non-Existent

1.1.9 Toughness

2.1

Not Available

1.1.10 Specific Gravity

2.6-2.631.1-1.4

0 8.4

1.1.11 Transparency

Translucent to Opaque

Opaque

1.1.12 Density

2.6-2.65 g/cm³1100-1400 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA1.32 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant

Pegmatite vs Coal Properties

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