Properties of Coal and Porphyry
Grain Size
Medium to Fine Coarse Grained
Fine Grained
Fracture
Conchoidal
Irregular
Porosity
Less Porous
Less Porous
Luster
Dull to Vitreous to Submetallic
Dull
Cleavage
Non-Existent
Imperfect
Toughness
Not Available
1.7
Specific Gravity
1.1-1.4
2.5-4
Transparency
Opaque
Translucent to Opaque
Density
1100-1400 g/cm3
2.5-2.52 g/cm3
Specific Heat Capacity
Not Available
Resistance
Heat Resistant
Heat Resistant, Impact Resistant
Coal vs Porphyry Properties
Properties of Coal and Porphyry play an important role in determining the type of rock. Along with Coal vs Porphyry properties, get to know more about Coal 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 Coal and Porphyry.