Zincite and Kyanite Physical Properties
Tenacity
Brittle
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.50-5.90
  
3.53-3.65
  
Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle
  
Splintery, Brittle, Metallic
  
Cleavage
On {10 1 0}, perfect; parting on {000 1 }
  
[100] perfect [010] imperfect with 79° angle between
  
Mohs Hardness
4
  
4-7
  
Chemical Composition
(Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
Not Available
  
Zincite and Kyanite Chemical Formula
While comparing Zincite 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 Zincite and Kyanite chemical formula.
- Chemical formula of Zincite- (Zn,Mn2+ )OMichael OâDonoghue , Gems, Sixth Edition (2006)
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Zincite and Kyanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zincite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zincite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Zincite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.