Properties of Tephrite and Phonolite

Tephrite

Phonolite

Properties of Phonolite and Tephrite

Properties

Physical Properties

Hardness

6.5

5.5-6

Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Uneven

Conchoidal to Uneven

Streak

Bluish Black

White

Porosity

Very Less Porous

Less Porous

Luster

Subvitreous to Dull

Greasy to Dull

Compressive Strength

90.00 N/mm²

150.00 N/mm²

Cleavage

Crenulation and Pervasive

Poor

Toughness

2.4

Not Available

Specific Gravity

2.86

2.6

Transparency

Opaque

Translucent to Opaque

Density

2.8-2.9 g/cm³

2.6 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Not Available

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Reserves >>

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Tephrite vs Phonolite Properties

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