Properties of Coquina and Dacite
Physical Properties
  
  
Hardness
1-2
  
2-2.25
  
Grain Size
Coarse Grained
  
Medium to Fine Coarse Grained
  
Fracture
Irregular
  
Conchoidal
  
Streak
White
  
White
  
Porosity
Highly Porous
  
Less Porous
  
Luster
Dull to Vitreous to Submetallic
  
Subvitreous to Dull
  
Cleavage
Not Available
  
Perfect
  
Toughness
Not Available
  
Not Available
  
Specific Gravity
1.10-2.24
  
2.86-2.87
  
Transparency
Opaque
  
Translucent
  
Density
2.8-2.9 g/cm3
  
2.77-2.771 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
Not Available
  
0.92 kJ/Kg K
  
10
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
  
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
  
Coquina vs Dacite Properties
Properties of Coquina and Dacite play an important role in determining the type of rock. Along with Coquina vs Dacite properties, get to know more about Coquina Definition and Dacite 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 Coquina and Dacite.