Properties of Porphyry and Tephrite

Porphyry

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

Fine Grained

Medium to Fine Coarse Grained

1.1.3 Fracture

Irregular

Uneven

1.1.4 Streak

White

Bluish Black

1.1.5 Porosity

Less 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

Imperfect

Crenulation and Pervasive

1.1.9 Toughness

1.7

2.4

1.1.10 Specific Gravity

2.5-42.86

0 8.4

1.1.11 Transparency

Translucent to Opaque

Opaque

1.1.12 Density

2.5-2.52 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

Porphyry vs Tephrite Properties

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