Properties of Pumice and Greywacke

Pumice

Greywacke

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

66-7

1 7

1.1.2 Grain Size

Fine Grained

Angular and Fine

1.1.3 Fracture

Planar

Conchoidal

1.1.4 Streak

White, Greenish White or Grey

White

1.1.5 Porosity

Highly Porous

1.1.6 Luster

Earthy

Dull

1.1.7 Compressive Strength

51.20 N/mm²NA

0.15 450

1.1.8 Cleavage

Perfect

1.1.9 Toughness

2.6

1.1.10 Specific Gravity

2.862.2-2.8

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

0.25-0.3 g/cm³2.6-2.61 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.87 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Pumice vs Greywacke Properties

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