Marble and Corundum Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
insoluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
3.90-4.05
  
Fracture
Not Available
  
Uneven, Uneven, Gems, Difficult, Fibrous
  
Cleavage
Not Available
  
None – parting in 3 directions
  
Mohs Hardness
Not Available
  
9
  
Chemical Composition
Not Available
  
Al 2O 3Arthur Thomas , Gemstones (2009)
  
Marble and Corundum Chemical Formula
While comparing Marble and Corundum physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Marble and Corundum chemical formula.
>- Chemical formula of Corundum- Al 2O 3Arthur Thomas , Gemstones (2009)
Marble and Corundum Specific Gravity
Another important criteria for qualitative analysis of gemstones is Marble and Corundum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Marble and Corundum Optical Properties during the identification of gemstone. Specific gravity of Marble is 3.90-4.05 whereas that of Corundum is 3.90-4.05.