Properties of Porphyry and Slate

Porphyry

Slate

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-73-4

1 7

1.1.2 Grain Size

Fine Grained

Very fine-grained

1.1.3 Fracture

Irregular

Splintery

1.1.4 Streak

White

Light to dark brown

1.1.5 Porosity

Less Porous

1.1.6 Luster

Dull

1.1.7 Compressive Strength

NA30.00 N/mm²

0.15 450

1.1.8 Cleavage

Imperfect

Slaty

1.1.9 Toughness

1.7

1.2

1.1.10 Specific Gravity

2.5-42.65-2.8

0 8.4

1.1.11 Transparency

Translucent to Opaque

Opaque

1.1.12 Density

2.5-2.52 g/cm³2.6-2.8 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA0.76 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 Slate Properties

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