Properties of Obsidian and Tephrite

Obsidian

Tephrite

Properties of Tephrite and Obsidian

Properties

Physical Properties

Hardness

5-5.5

6.5

Grain Size

Not Applicable

Medium to Fine Coarse Grained

Fracture

Conchoidal

Uneven

Streak

White

Bluish Black

Porosity

Very Less Porous

Luster

Vitreous

Subvitreous to Dull

Compressive Strength

0.15 N/mm²

90.00 N/mm²

Cleavage

Non-Existent

Crenulation and Pervasive

Toughness

Not Available

2.4

Specific Gravity

2.6-2.7

2.86

Transparency

Translucent

Opaque

Density

2.6 g/cm³

2.8-2.9 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant

Reserves >>

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Obsidian vs Tephrite Properties

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