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Chalk
Chalk

Flint
Flint



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Chalk
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Flint

Properties of Chalk and Flint

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Properties

Physical Properties

Hardness

17
1 7
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Grain Size

Very fine-grained
Very fine-grained

Fracture

-
Conchoidal

Streak

White
White

Porosity

Highly Porous
Highly Porous

Luster

Dull
Vitreous

Compressive Strength

5.00 N/mm2450.00 N/mm2
0.15 450
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Cleavage

-
-

Toughness

1
1.5

Specific Gravity

2.3-2.42.5-2.8
0 8.4
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Transparency

Opaque
Translucent to Opaque

Density

2.49-2.50 g/cm32.7-2.71 g/cm3
0 1400
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Thermal Properties

Specific Heat Capacity

0.90 kJ/Kg K0.74 kJ/Kg K
0.14 3.2
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Resistance

Heat Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Chalk vs Flint Properties

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