Ruby and Glaucophane Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.97-4.05
  
3-3.15
  
Fracture
Conchoidal
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
No true cleavage
  
Good on [110] and on [001]
  
Mohs Hardness
9
  
6.0-6.5
  
Chemical Composition
Al 2 O 3
  
[ ]Na2(Mg3Al2)Si8O22(OH)2
  
Ruby and Glaucophane Chemical Formula
While comparing Ruby and Glaucophane 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 Glaucophane chemical formula.
- Chemical formula of Ruby- Al 2 O 3
- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Ruby and Glaucophane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ruby and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Ruby is 3-3.15 whereas that of Glaucophane is 3-3.15.