Properties of Gneiss and Chert

Gneiss

Chert

Properties of Chert and Gneiss

Properties

Physical Properties

Hardness

6.5-7

Grain Size

Medium to Coarse Grained

Very fine-grained

Fracture

Irregular

Uneven, Splintery or Conchoidal

Streak

White

Porosity

Very Less Porous

Highly Porous

Luster

Dull

Waxy and Dull

Compressive Strength

125.00 N/mm²

450.00 N/mm²

Cleavage

Poor

Non-Existent

Toughness

1.2

1.5

Specific Gravity

2.5-2.7

2.5-2.8

Transparency

Translucent to Opaque

Density

2.6-2.9 g/cm³

2.7 g/cm³

Thermal Properties

Specific Heat Capacity

Not Available

0.74 kJ/Kg K

Resistance

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

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Gneiss vs Chert Properties

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