Properties of Chalk and Slate

Chalk

Slate

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

13-4

1 7

1.1.2 Grain Size

Very fine-grained

1.1.3 Fracture

Not Available

Splintery

1.1.4 Streak

White

Light to dark brown

1.1.5 Porosity

Highly Porous

Less Porous

1.1.6 Luster

Dull

1.1.7 Compressive Strength

NA30.00 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Slaty

1.1.9 Toughness

1.2

1.1.10 Specific Gravity

2.3-2.42.65-2.8

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

2.49-2.50 g/cm³2.6-2.8 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.90 kJ/Kg K0.76 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Chalk vs Slate Properties

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