Properties of Gneiss and Phonolite
Grain Size
Medium to Coarse Grained
Fine Grained
Fracture
Irregular
Conchoidal to Uneven
Porosity
Very Less Porous
Less Porous
Luster
Dull
Greasy to Dull
Toughness
1.2
Not Available
Specific Gravity
2.5-2.7
2.6
Transparency
Translucent to Opaque
Translucent to Opaque
Density
2.6-2.9 g/cm3
2.6 g/cm3
Resistance
Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Wear Resistant
Gneiss vs Phonolite Properties
Properties of Gneiss and Phonolite play an important role in determining the type of rock. Along with Gneiss vs Phonolite properties, get to know more about Gneiss Definition and Phonolite 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 Phonolite.