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Obsidian
Obsidian




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Properties of Obsidian

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1 Properties
1.1 Physical Properties
1.1.1 Hardness
5-5.5
1.1.2 Grain Size
Not Applicable
1.1.3 Fracture
Conchoidal
1.1.4 Streak
White
1.1.5 Porosity
Very Less Porous
1.1.6 Luster
Vitreous
1.1.7 Compressive Strength
Properties of F..
0.15 N/mm2
Rank: 33 (Overall)
Properties of Obsidian
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1.1.8 Cleavage
Non-Existent
1.1.9 Toughness
Not Available
1.1.10 Specific Gravity
2.6-2.7
1.1.11 Transparency
Translucent
1.1.12 Density
2.6 g/cm3
1.2 Thermal Properties
1.2.1 Specific Heat Capacity
Properties of B..
0.92 kJ/Kg K
Rank: 10 (Overall)
Properties of Granulite
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1.2.2 Resistance
Heat Resistant, Impact Resistant

Physical Properties of Obsidian

Physical properties of rocks are used to identify the type of rocks and to discover more about them. There are various physical properties of Obsidian like Hardness, Grain Size, Fracture, Streak, Porosity, Luster, Strength etc which defines it. The physical properties of Obsidian rock are vital in determining its Obsidian Texture and Obsidian Uses.

Hardness and Strength of Obsidian

The physical properties of Obsidian depend on its formation. Physical properties of rocks play an important role in determining its applications in various fields. Rocks are rated on the on the Moh's Hardness Scale which rates the rocks on the scale from 1 to 10. Rocks with hardness 1-3 are soft rocks from 3-6 are medium hardness rocks and 6-10 are hard rocks. The hardness of Obsidian is 5-5.5 whereas its compressive strength is 0.15 N/mm2. Streak is the color of rock when it is crushed or powdered. The streak of Obsidian is white whereas its fracture is conchoidal. Luster of Obsidian is the interaction of light with the surface of Obsidian. Luster of Obsidian is vitreous. Obsidian cleavage is non-existent. The specific gravity of Obsidian is 2.6-2.7. Obsidian is translucent in nature whereas its toughness is not available. You can also know all the list of rocks in Opaque Rocks, Translucent Rocks and Transparent Rocks.