Properties of Obsidian and Rhyodacite

Obsidian

Rhyodacite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.55.5-6

1 7

1.1.2 Grain Size

Not Applicable

Fine Grained

1.1.3 Fracture

Conchoidal

1.1.4 Streak

White

Black

1.1.5 Porosity

Very Less Porous

Less Porous

1.1.6 Luster

Vitreous

Greasy to Dull

1.1.7 Compressive Strength

0.15 N/mm²200.50 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Not Available

1.1.9 Toughness

Not Available

2.1

1.1.10 Specific Gravity

2.6-2.72.34-2.40

0 8.4

1.1.11 Transparency

Translucent

Opaque

1.1.12 Density

2.6 g/cm³Not Available

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.92 kJ/Kg K1.12 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant

Obsidian vs Rhyodacite Properties

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