Properties of Obsidian and Nephelinite
Properties
Physical Properties
Hardness
5-5.5
6.5
Grain Size
Not Applicable
Fine Grained
Fracture
Conchoidal
Flat
Streak
White
White
Porosity
Very Less Porous
Less Porous
Luster
Vitreous
Vitreous to Metallic
Compressive Strength
0.15 N/mm2
33
35.00 N/mm2
29
Cleavage
Non-Existent
Imperfect
Toughness
Not Available
2.7
Specific Gravity
2.6-2.7
2.4-2.9
Transparency
Translucent
Opaque
Density
2.6 g/cm3
2.5-3 g/cm3
Thermal Properties
Specific Heat Capacity
0.92 kJ/Kg K
10
0.88 kJ/Kg K
13
Resistance
Heat Resistant, Impact Resistant
Heat Resistant
Obsidian vs Nephelinite Properties
Properties of Obsidian and Nephelinite play an important role in determining the type of rock. Along with Obsidian vs Nephelinite properties, get to know more about Obsidian Definition and Nephelinite 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 Nephelinite.
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