Properties of Granite and Coal
Physical Properties
  
  
Hardness
6-7
  
1-1.5
  
Grain Size
Large and Coarse Grained
  
Medium to Fine Coarse Grained
  
Fracture
Not Available
  
Conchoidal
  
Streak
White
  
Black
  
Porosity
Less Porous
  
Less Porous
  
Luster
Dull to Grainy with Sporadic parts Pearly and Vitreous
  
Dull to Vitreous to Submetallic
  
Compressive Strength
175.00 N/mm
2
  
13
Not Available
  
Cleavage
Not Available
  
Non-Existent
  
Toughness
Not Available
  
Not Available
  
Specific Gravity
2.6-2.7
  
1.1-1.4
  
Transparency
Opaque
  
Opaque
  
Density
2.65-2.75 g/cm3
  
1100-1400 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.79 kJ/Kg K
  
16
1.32 kJ/Kg K
  
4
Resistance
Heat Resistant, Wear Resistant
  
Heat Resistant
  
Granite vs Coal Properties
Properties of Granite and Coal play an important role in determining the type of rock. Along with Granite vs Coal properties, get to know more about Granite Definition and Coal 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 Coal.