Ruby and Jade Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.97-4.05
  
2.90-3.38
  
Fracture
Conchoidal
  
Gemstones of the world (2001), Difficult, Splintery
  
Cleavage
No true cleavage
  
1 or 2,2 prismatic.
  
Mohs Hardness
9
  
6-7
  
Chemical Composition
Al 2 O 3
  
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
  
Ruby and Jade Chemical Formula
While comparing Ruby and Jade 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 Jade chemical formula.
- Chemical formula of Ruby- Al 2 O 3
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Ruby and Jade Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ruby and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Jade Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.90-3.38 whereas that of Jade is 2.90-3.38.
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