Properties of Tephrite and Pumice

Tephrite

Pumice

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6.56

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

Fine Grained

1.1.3 Fracture

Uneven

Planar

1.1.4 Streak

Bluish Black

White, Greenish White or Grey

1.1.5 Porosity

Very Less Porous

Highly Porous

1.1.6 Luster

Subvitreous to Dull

Earthy

1.1.7 Compressive Strength

90.00 N/mm²51.20 N/mm²

0.15 450

1.1.8 Cleavage

Crenulation and Pervasive

Perfect

1.1.9 Toughness

2.4

1.1.10 Specific Gravity

2.862.86

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

2.8-2.9 g/cm³0.25-0.3 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.92 kJ/Kg K0.87 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Impact Resistant, Pressure Resistant

Tephrite vs Pumice Properties

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