Properties of Hornfels and Obsidian

Hornfels

Obsidian

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

2-35-5.5

1 7

1.1.2 Grain Size

Fine Grained

Not Applicable

1.1.3 Fracture

Conchoidal

1.1.4 Streak

Unknown

White

1.1.5 Porosity

Highly Porous

Very Less Porous

1.1.6 Luster

Shiny

Vitreous

1.1.7 Compressive Strength

5.80 N/mm²0.15 N/mm²

0.15 450

1.1.8 Cleavage

Perfect

Non-Existent

1.1.9 Toughness

Not Yet Found

Not Available

1.1.10 Specific Gravity

3.4-3.92.6-2.7

0 8.4

1.1.11 Transparency

Opaque

Translucent

1.1.12 Density

0.25-0.30 g/cm³2.6 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.84 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant

Hornfels vs Obsidian Properties

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