Properties of Obsidian and Granophyre

Obsidian

Granophyre

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.56-7

1 7

1.1.2 Grain Size

Not Applicable

Medium to Fine Coarse Grained

1.1.3 Fracture

Conchoidal

Not Available

1.1.4 Streak

White

1.1.5 Porosity

Very Less Porous

Less Porous

1.1.6 Luster

Vitreous

Dull to Grainy with Sporadic parts Pearly and Vitreous

1.1.7 Compressive Strength

0.15 N/mm²175.00 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Not Available

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

2.6-2.72.6-2.7

0 8.4

1.1.11 Transparency

Translucent

Opaque

1.1.12 Density

2.6 g/cm³2.6-2.8 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.92 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Wear Resistant

Obsidian vs Granophyre Properties

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