Properties of Chalk and Porphyry

Chalk

Porphyry

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

16-7

1 7

1.1.2 Grain Size

Very fine-grained

Fine Grained

1.1.3 Fracture

Not Available

Irregular

1.1.4 Streak

White

1.1.5 Porosity

Highly Porous

Less Porous

1.1.6 Luster

Dull

1.1.7 Compressive Strength

NANA

0.15 450

1.1.8 Cleavage

Non-Existent

Imperfect

1.1.9 Toughness

1.7

1.1.10 Specific Gravity

2.3-2.42.5-4

0 8.4

1.1.11 Transparency

Opaque

Translucent to Opaque

1.1.12 Density

2.49-2.50 g/cm³2.5-2.52 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.90 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant

Heat Resistant, Impact Resistant

Chalk vs Porphyry Properties

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