Properties of Granite and Porphyry
Physical Properties
  
  
Hardness
6-7
  
6-7
  
Grain Size
Large and Coarse Grained
  
Fine Grained
  
Fracture
Not Available
  
Irregular
  
Streak
White
  
White
  
Porosity
Less Porous
  
Less Porous
  
Luster
Dull to Grainy with Sporadic parts Pearly and Vitreous
  
Dull
  
Compressive Strength
175.00 N/mm
2
  
13
Not Available
  
Cleavage
Not Available
  
Imperfect
  
Toughness
Not Available
  
1.7
  
Specific Gravity
2.6-2.7
  
2.5-4
  
Transparency
Opaque
  
Translucent to Opaque
  
Density
2.65-2.75 g/cm3
  
2.5-2.52 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.79 kJ/Kg K
  
16
Not Available
  
Resistance
Heat Resistant, Wear Resistant
  
Heat Resistant, Impact Resistant
  
Granite vs Porphyry Properties
Properties of Granite and Porphyry play an important role in determining the type of rock. Along with Granite vs Porphyry properties, get to know more about Granite 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 Granite and Porphyry.