Properties of Chert and Obsidian

Chert

Obsidian

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6.5-75-5.5

1 7

1.1.2 Grain Size

Very fine-grained

Not Applicable

1.1.3 Fracture

Uneven, Splintery or Conchoidal

Conchoidal

1.1.4 Streak

White

1.1.5 Porosity

Highly Porous

Very Less Porous

1.1.6 Luster

Waxy and Dull

Vitreous

1.1.7 Compressive Strength

450.00 N/mm²0.15 N/mm²

0.15 450

1.1.8 Cleavage

Non-Existent

1.1.9 Toughness

1.5

Not Available

1.1.10 Specific Gravity

2.5-2.82.6-2.7

0 8.4

1.1.11 Transparency

Translucent to Opaque

Translucent

1.1.12 Density

2.7 g/cm³2.6 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.74 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant

Chert vs Obsidian Properties

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