Properties of Slate and Porphyry

Slate

Porphyry

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

3-46-7

1 7

1.1.2 Grain Size

Very fine-grained

Fine Grained

1.1.3 Fracture

Splintery

Irregular

1.1.4 Streak

Light to dark brown

White

1.1.5 Porosity

Less Porous

1.1.6 Luster

Dull

1.1.7 Compressive Strength

30.00 N/mm²NA

0.15 450

1.1.8 Cleavage

Slaty

Imperfect

1.1.9 Toughness

1.2

1.7

1.1.10 Specific Gravity

2.65-2.82.5-4

0 8.4

1.1.11 Transparency

Opaque

Translucent to Opaque

1.1.12 Density

2.6-2.8 g/cm³2.5-2.52 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.76 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant

Slate vs Porphyry Properties

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