Properties of Chalk and Gneiss

Chalk

Gneiss

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1 7

1.1.2 Grain Size

Very fine-grained

Medium to Coarse Grained

1.1.3 Fracture

Not Available

Irregular

1.1.4 Streak

White

1.1.5 Porosity

Highly Porous

Very Less Porous

1.1.6 Luster

Dull

1.1.7 Compressive Strength

NA125.00 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Poor

1.1.9 Toughness

1.2

1.1.10 Specific Gravity

2.3-2.42.5-2.7

0 8.4

1.1.11 Transparency

Opaque

Translucent to Opaque

1.1.12 Density

2.49-2.50 g/cm³2.6-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.90 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Chalk vs Gneiss Properties

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