Properties of Granite and Porphyry

Granite

Porphyry

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-76-7

1 7

1.1.2 Grain Size

Large and Coarse Grained

Fine Grained

1.1.3 Fracture

Not Available

Irregular

1.1.4 Streak

White

1.1.5 Porosity

Less Porous

1.1.6 Luster

Dull to Grainy with Sporadic parts Pearly and Vitreous

Dull

1.1.7 Compressive Strength

175.00 N/mm²NA

0.15 450

1.1.8 Cleavage

Not Available

Imperfect

1.1.9 Toughness

Not Available

1.7

1.1.10 Specific Gravity

2.6-2.72.5-4

0 8.4

1.1.11 Transparency

Opaque

Translucent to Opaque

1.1.12 Density

2.65-2.75 g/cm³2.5-2.52 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.79 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Wear Resistant

Heat Resistant, Impact Resistant

Granite vs Porphyry Properties

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