Properties of Obsidian and Picrite

Obsidian

Picrite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.56.8

1 7

1.1.2 Grain Size

Not Applicable

Fine Grained

1.1.3 Fracture

Conchoidal

Uneven

1.1.4 Streak

White

White, Greenish White or Grey

1.1.5 Porosity

Very Less Porous

Less Porous

1.1.6 Luster

Vitreous

Subvitreous to Dull

1.1.7 Compressive Strength

0.15 N/mm²189.00 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

Imperfect

1.1.9 Toughness

Not Available

2.1

1.1.10 Specific Gravity

2.6-2.72.75-2.92

0 8.4

1.1.11 Transparency

Translucent

Opaque

1.1.12 Density

2.6 g/cm³1.5-2.5 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.92 kJ/Kg K0.88 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant

Obsidian vs Picrite Properties

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