Properties of Obsidian and Chert
Grain Size
Not Applicable
Very fine-grained
Fracture
Conchoidal
Uneven, Splintery or Conchoidal
Porosity
Very Less Porous
Highly Porous
Luster
Vitreous
Waxy and Dull
Cleavage
Non-Existent
Non-Existent
Toughness
Not Available
1.5
Specific Gravity
2.6-2.7
2.5-2.8
Transparency
Translucent
Translucent to Opaque
Density
2.6 g/cm3
2.7 g/cm3
Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Obsidian vs Chert Properties
Properties of Obsidian and Chert play an important role in determining the type of rock. Along with Obsidian vs Chert properties, get to know more about Obsidian Definition and Chert 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 Chert.