Properties of Greywacke and Tephrite

Greywacke

Tephrite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-76.5

1 7

1.1.2 Grain Size

Angular and Fine

Medium to Fine Coarse Grained

1.1.3 Fracture

Conchoidal

Uneven

1.1.4 Streak

White

Bluish Black

1.1.5 Porosity

Highly Porous

Very Less Porous

1.1.6 Luster

Dull

Subvitreous to Dull

1.1.7 Compressive Strength

NA90.00 N/mm²

0.15 450

1.1.8 Cleavage

Perfect

Crenulation and Pervasive

1.1.9 Toughness

2.6

2.4

1.1.10 Specific Gravity

2.2-2.82.86

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

2.6-2.61 g/cm³2.8-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA0.92 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant

Greywacke vs Tephrite Properties

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