Sinhalite and Ruby Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.46-3.50
  
3.97-4.05
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Conchoidal
  
Cleavage
Not Available
  
No true cleavage
  
Mohs Hardness
6-7
  
9
  
Chemical Composition
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Al 2 O 3
  
Sinhalite and Ruby Chemical Formula
While comparing Sinhalite and Ruby 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 Sinhalite and Ruby chemical formula.
- Chemical formula of Sinhalite- MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Ruby- Al 2 O 3
Sinhalite and Ruby Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sinhalite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sinhalite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Sinhalite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.