Properties of Hornfels and Gneiss

Hornfels

Gneiss

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

2-37

1 7

1.1.2 Grain Size

Fine Grained

Medium to Coarse Grained

1.1.3 Fracture

Conchoidal

Irregular

1.1.4 Streak

Unknown

White

1.1.5 Porosity

Highly Porous

Very Less Porous

1.1.6 Luster

Shiny

Dull

1.1.7 Compressive Strength

5.80 N/mm²125.00 N/mm²

0.15 450

1.1.8 Cleavage

Perfect

Poor

1.1.9 Toughness

Not Yet Found

1.2

1.1.10 Specific Gravity

3.4-3.92.5-2.7

0 8.4

1.1.11 Transparency

Opaque

Translucent to Opaque

1.1.12 Density

0.25-0.30 g/cm³2.6-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.84 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Hornfels vs Gneiss Properties

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