Properties of Tonalite and Obsidian

Tonalite

Obsidian

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-75-5.5

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

Not Applicable

1.1.3 Fracture

Conchoidal

1.1.4 Streak

Bluish Black

White

1.1.5 Porosity

Very Less Porous

1.1.6 Luster

Subvitreous to Dull

Vitreous

1.1.7 Compressive Strength

NA0.15 N/mm²

0.15 450

1.1.8 Cleavage

Not Available

Non-Existent

1.1.9 Toughness

2.1

Not Available

1.1.10 Specific Gravity

2.86-32.6-2.7

0 8.4

1.1.11 Transparency

Opaque

Translucent

1.1.12 Density

2.73 g/cm³2.6 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.92 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Pressure Resistant, Water Resistant

Heat Resistant, Impact Resistant

Tonalite vs Obsidian Properties

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