Properties of Tephrite and Obsidian

Tephrite

Obsidian

Properties of Obsidian and Tephrite

Properties

Physical Properties

Hardness

6.5

5-5.5

Grain Size

Medium to Fine Coarse Grained

Not Applicable

Fracture

Uneven

Conchoidal

Streak

Bluish Black

White

Porosity

Very Less Porous

Luster

Subvitreous to Dull

Vitreous

Compressive Strength

90.00 N/mm²

0.15 N/mm²

Cleavage

Crenulation and Pervasive

Non-Existent

Toughness

2.4

Not Available

Specific Gravity

2.86

2.6-2.7

Transparency

Opaque

Translucent

Density

2.8-2.9 g/cm³

2.6 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant

Reserves >>

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Tephrite vs Obsidian Properties

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