Properties of Argillite and Obsidian

Argillite

Obsidian

Properties of Obsidian and Argillite

Properties

Physical Properties

Hardness

2-3

5-5.5

Grain Size

Fine Grained

Not Applicable

Fracture

Conchoidal to Uneven

Conchoidal

Streak

White to Grey

White

Porosity

Highly Porous

Very Less Porous

Luster

Waxy and Dull

Vitreous

Compressive Strength

Not Available

0.15 N/mm²

Cleavage

Slaty

Non-Existent

Toughness

2.6

Not Available

Specific Gravity

2.56-2.68

2.6-2.7

Transparency

Opaque

Translucent

Density

2.54-2.66 g/cm³

2.6 g/cm³

Thermal Properties

Specific Heat Capacity

0.87 kJ/Kg K

0.92 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant

Reserves >>

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Argillite vs Obsidian Properties

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