Properties of Gneiss and Porphyry
Grain Size
Medium to Coarse Grained
Fine Grained
Fracture
Irregular
Irregular
Porosity
Very Less Porous
Less Porous
Compressive Strength
Not Available
Specific Gravity
2.5-2.7
2.5-4
Transparency
Translucent to Opaque
Translucent to Opaque
Density
2.6-2.9 g/cm3
2.5-2.52 g/cm3
Resistance
Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant
Heat Resistant, Impact Resistant
Gneiss vs Porphyry Properties
Properties of Gneiss and Porphyry play an important role in determining the type of rock. Along with Gneiss vs Porphyry properties, get to know more about Gneiss 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 Gneiss and Porphyry.