Properties of Gneiss and Pumice

Gneiss

Pumice

Add ⊕

1 Properties

1.1 Physical Properties

1.1.1 Hardness

1 7

1.1.2 Grain Size

Medium to Coarse Grained

Fine Grained

1.1.3 Fracture

Irregular

Planar

1.1.4 Streak

White

White, Greenish White or Grey

1.1.5 Porosity

Very Less Porous

Highly Porous

1.1.6 Luster

Dull

Earthy

1.1.7 Compressive Strength

125.00 N/mm²51.20 N/mm²

0.15 450

1.1.8 Cleavage

Poor

Perfect

1.1.9 Toughness

1.2

1.1.10 Specific Gravity

2.5-2.72.86

0 8.4

1.1.11 Transparency

Translucent to Opaque

Opaque

1.1.12 Density

2.6-2.9 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, Pressure Resistant, Scratch Resistant, Wear Resistant

Impact Resistant, Pressure Resistant

Gneiss vs Pumice Properties

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