Properties of Porphyry and Phonolite

Porphyry

Phonolite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-75.5-6

1 7

1.1.2 Grain Size

Fine Grained

1.1.3 Fracture

Irregular

Conchoidal to Uneven

1.1.4 Streak

White

1.1.5 Porosity

Less Porous

1.1.6 Luster

Dull

Greasy to Dull

1.1.7 Compressive Strength

NA150.00 N/mm²

0.15 450

1.1.8 Cleavage

Imperfect

Poor

1.1.9 Toughness

1.7

Not Available

1.1.10 Specific Gravity

2.5-42.6

0 8.4

1.1.11 Transparency

Translucent to Opaque

1.1.12 Density

2.5-2.52 g/cm³2.6 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NANA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Porphyry vs Phonolite Properties

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