Chlorastrolite and Kyanite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.1-3.5
  
3.53-3.65
  
Fracture
Granular
  
Splintery, Brittle, Metallic
  
Cleavage
Not Available
  
[100] perfect [010] imperfect with 79° angle between
  
Mohs Hardness
5-6
  
4-7
  
Chemical Composition
Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
  
Not Available
  
Chlorastrolite and Kyanite Chemical Formula
While comparing Chlorastrolite and Kyanite 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 Chlorastrolite and Kyanite chemical formula.
- Chemical formula of Chlorastrolite- Ca 2(Mg,Fe)Al 2(SiO 4)(Si 2O 7)(OH) 2 · H 2O)Arthur Thomas , Gemstones (2009)
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Chlorastrolite and Kyanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Chlorastrolite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Chlorastrolite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Chlorastrolite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.