Properties of Obsidian and Granite

Obsidian

Granite

Properties of Granite and Obsidian

Properties

Physical Properties

Hardness

5-5.5

6-7

Grain Size

Not Applicable

Large and Coarse Grained

Fracture

Conchoidal

Not Available

Streak

White

Porosity

Very Less Porous

Less Porous

Luster

Vitreous

Dull to Grainy with Sporadic parts Pearly and Vitreous

Compressive Strength

0.15 N/mm²

175.00 N/mm²

Cleavage

Non-Existent

Not Available

Toughness

Not Available

Specific Gravity

2.6-2.7

Transparency

Translucent

Opaque

Density

2.6 g/cm³

2.65-2.75 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

0.79 kJ/Kg K

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Wear Resistant

Reserves >>

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Obsidian vs Granite Properties

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