Properties of Tephrite and Porphyry

Tephrite

Porphyry

Properties of Porphyry and Tephrite

Properties

Physical Properties

Hardness

6.5

6-7

Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Uneven

Irregular

Streak

Bluish Black

White

Porosity

Very Less Porous

Less Porous

Luster

Subvitreous to Dull

Dull

Compressive Strength

90.00 N/mm²

Not Available

Cleavage

Crenulation and Pervasive

Imperfect

Toughness

2.4

1.7

Specific Gravity

2.86

2.5-4

Transparency

Opaque

Translucent to Opaque

Density

2.8-2.9 g/cm³

2.5-2.52 g/cm³

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K

Not Available

Resistance

Heat Resistant, Impact Resistant

Reserves >>

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Tephrite vs Porphyry Properties

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