Thomsonite and Kyanite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.25-2.40
  
3.53-3.65
  
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Splintery, Brittle, Metallic
  
Cleavage
perfect on {010}; good on {100}
  
[100] perfect [010] imperfect with 79° angle between
  
Mohs Hardness
5-5.5
  
4-7
  
Chemical Composition
NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Thomsonite and Kyanite Chemical Formula
While comparing Thomsonite 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 Thomsonite and Kyanite chemical formula.
- Chemical formula of Thomsonite- NaCa 2Al 5Si 5O 20 · 6H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Thomsonite and Kyanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Thomsonite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thomsonite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Thomsonite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.