Kyanite and Glaucophane Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.53-3.65
  
3-3.15
  
Fracture
Splintery, Brittle, Metallic
  
Conchoidal, Brittle, Conchoidal
  
Cleavage
[100] perfect [010] imperfect with 79° angle between
  
Good on [110] and on [001]
  
Mohs Hardness
4-7
  
6.0-6.5
  
Chemical Composition
Not Available
  
[ ]Na2(Mg3Al2)Si8O22(OH)2
  
Kyanite and Glaucophane Chemical Formula
While comparing Kyanite 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 Kyanite and Glaucophane chemical formula.
>- Chemical formula of Glaucophane- [ ]Na2(Mg3Al2)Si8O22(OH)2
Kyanite and Glaucophane Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Glaucophane Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Glaucophane Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 3-3.15 whereas that of Glaucophane is 3-3.15.