Properties of Anthracite and Porphyry

Anthracite

Porphyry

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1-1.56-7

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

Fine Grained

1.1.3 Fracture

Conchoidal

Irregular

1.1.4 Streak

Black

White

1.1.5 Porosity

Less Porous

1.1.6 Luster

Shiny

Dull

1.1.7 Compressive Strength

NANA

0.15 450

1.1.8 Cleavage

Non-Existent

Imperfect

1.1.9 Toughness

Not Available

1.7

1.1.10 Specific Gravity

1.1-1.42.5-4

0 8.4

1.1.11 Transparency

Opaque

Translucent to Opaque

1.1.12 Density

1.25-2.5 g/cm³2.5-2.52 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

1.32 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Water Resistant

Heat Resistant, Impact Resistant

Anthracite vs Porphyry Properties

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