Properties of Porphyry and Chert

Porphyry

Chert

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-76.5-7

1 7

1.1.2 Grain Size

Fine Grained

Very fine-grained

1.1.3 Fracture

Irregular

Uneven, Splintery or Conchoidal

1.1.4 Streak

White

1.1.5 Porosity

Less Porous

Highly Porous

1.1.6 Luster

Dull

Waxy and Dull

1.1.7 Compressive Strength

NA450.00 N/mm²

0.15 450

1.1.8 Cleavage

Imperfect

Non-Existent

1.1.9 Toughness

1.7

1.5

1.1.10 Specific Gravity

2.5-42.5-2.8

0 8.4

1.1.11 Transparency

Translucent to Opaque

1.1.12 Density

2.5-2.52 g/cm³2.7 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA0.74 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Porphyry vs Chert Properties

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