Properties of Obsidian and Phonolite

Obsidian

Phonolite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.55.5-6

1 7

1.6.1 Grain Size

Not Applicable

Fine Grained

1.6.2 Fracture

Conchoidal

Conchoidal to Uneven

1.6.3 Streak

White

1.6.4 Porosity

Very Less Porous

Less Porous

1.6.5 Luster

Vitreous

Greasy to Dull

1.6.6 Compressive Strength

0.15 N/mm²150.00 N/mm²

0.15 450

1.6.7 Cleavage

Non-Existent

Poor

1.6.8 Toughness

Not Available

1.6.9 Specific Gravity

2.6-2.72.6

0 8.4

1.6.10 Transparency

Translucent

Translucent to Opaque

1.6.11 Density

2.6 g/cm³2.6 g/cm³

0 1400

1.7 Thermal Properties

1.7.1 Specific Heat Capacity

0.92 kJ/Kg KNA

0.14 3.2

1.7.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Obsidian vs Phonolite Properties

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