Properties of Porphyry and Dacite

Porphyry

Dacite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-72-2.25

1 7

1.1.2 Grain Size

Fine Grained

Medium to Fine Coarse Grained

1.1.3 Fracture

Irregular

Conchoidal

1.1.4 Streak

White

1.1.5 Porosity

Less Porous

1.1.6 Luster

Dull

Subvitreous to Dull

1.1.7 Compressive Strength

NANA

0.15 450

1.1.8 Cleavage

Imperfect

Perfect

1.1.9 Toughness

1.7

Not Available

1.1.10 Specific Gravity

2.5-42.86-2.87

0 8.4

1.1.11 Transparency

Translucent to Opaque

Translucent

1.1.12 Density

2.5-2.52 g/cm³2.77-2.771 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

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Porphyry vs Dacite Properties

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