Properties of Porphyry and Scoria
Physical Properties
  
  
Hardness
6-7
  
5-6
  
Grain Size
Fine Grained
  
Fine Grained
  
Fracture
Irregular
  
Conchoidal
  
Streak
White
  
White
  
Porosity
Less Porous
  
Highly Porous
  
Luster
Dull
  
Subvitreous to Dull
  
Cleavage
Imperfect
  
Perfect
  
Toughness
1.7
  
2.1
  
Specific Gravity
2.5-4
  
Not Available
  
Transparency
Translucent to Opaque
  
Opaque
  
Density
2.5-2.52 g/cm3
  
Not Available
  
Thermal Properties
  
  
Resistance
Heat Resistant, Impact Resistant
  
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
  
Porphyry vs Scoria Properties
Properties of Porphyry and Scoria play an important role in determining the type of rock. Along with Porphyry vs Scoria properties, get to know more about Porphyry Definition and Scoria 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 Porphyry and Scoria.