Ruby and Aragonite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Dilute acid
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.97-4.05
  
2.93-2.96
  
Fracture
Conchoidal
  
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
No true cleavage
  
Distinct on {010}, imperfect {110} and {011}
  
Mohs Hardness
9
  
3.5-4
  
Chemical Composition
Al 2 O 3
  
CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Ruby and Aragonite Chemical Formula
While comparing Ruby and Aragonite 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 Ruby and Aragonite chemical formula.
- Chemical formula of Ruby- Al 2 O 3
- Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ruby and Aragonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ruby and Aragonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Aragonite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.93-2.96 whereas that of Aragonite is 2.93-2.96.
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