Properties of Porphyry and Pumice

Porphyry

Pumice

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-76

1 7

1.1.2 Grain Size

Fine Grained

1.1.3 Fracture

Irregular

Planar

1.1.4 Streak

White

White, Greenish White or Grey

1.1.5 Porosity

Less Porous

Highly Porous

1.1.6 Luster

Dull

Earthy

1.1.7 Compressive Strength

NA51.20 N/mm²

0.15 450

1.1.8 Cleavage

Imperfect

Perfect

1.1.9 Toughness

1.7

1.1.10 Specific Gravity

2.5-42.86

0 8.4

1.1.11 Transparency

Translucent to Opaque

Opaque

1.1.12 Density

2.5-2.52 g/cm³0.25-0.3 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA0.87 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Impact Resistant, Pressure Resistant

Porphyry vs Pumice Properties

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