Properties of Chalk and Pumice
Physical Properties
  
  
Hardness
1
  
6
  
Grain Size
Very fine-grained
  
Fine Grained
  
Fracture
Not Available
  
Planar
  
Streak
White
  
White, Greenish White or Grey
  
Porosity
Highly Porous
  
Highly Porous
  
Luster
Dull
  
Earthy
  
Compressive Strength
Not Available
  
51.20 N/mm
2
  
26
Cleavage
Non-Existent
  
Perfect
  
Toughness
1
  
3
  
Specific Gravity
2.3-2.4
  
2.86
  
Transparency
Opaque
  
Opaque
  
Density
2.49-2.50 g/cm3
  
0.25-0.3 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.90 kJ/Kg K
  
12
0.87 kJ/Kg K
  
14
Resistance
Heat Resistant
  
Impact Resistant, Pressure Resistant
  
Chalk vs Pumice Properties
Properties of Chalk and Pumice play an important role in determining the type of rock. Along with Chalk vs Pumice properties, get to know more about Chalk Definition and Pumice 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 Chalk and Pumice.