Properties of Tephrite and Gneiss

Tephrite

Gneiss

Properties of Gneiss and Tephrite

Properties

Physical Properties

Hardness

6.5

Grain Size

Medium to Fine Coarse Grained

Medium to Coarse Grained

Fracture

Uneven

Irregular

Streak

Bluish Black

White

Porosity

Very Less Porous

Luster

Subvitreous to Dull

Dull

Compressive Strength

90.00 N/mm²

125.00 N/mm²

Cleavage

Crenulation and Pervasive

Poor

Toughness

2.4

1.2

Specific Gravity

2.86

2.5-2.7

Transparency

Opaque

Translucent to Opaque

Density

2.8-2.9 g/cm³

2.6-2.9 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Not Available

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Reserves >>

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Tephrite vs Gneiss Properties

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