Ruby and Variscite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.97-4.05
  
2.42-2.58
  
Fracture
Conchoidal
  
Conchoidal, Splintery, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
  
Cleavage
No true cleavage
  
[010] perfect
  
Mohs Hardness
9
  
4-5
  
Chemical Composition
Al 2 O 3
  
AlPO4 · 2(H2O)
  
Ruby and Variscite Chemical Formula
While comparing Ruby and Variscite 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 Variscite chemical formula.
- Chemical formula of Ruby- Al 2 O 3
- Chemical formula of Variscite- AlPO4 · 2(H2O)
Ruby and Variscite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ruby and Variscite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Variscite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.42-2.58 whereas that of Variscite is 2.42-2.58.
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