Kyanite and Microlite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.53-3.65
  
5.5
  
Fracture
Splintery, Brittle, Metallic
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
[100] perfect [010] imperfect with 79° angle between
  
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Mohs Hardness
4-7
  
5-5.5
  
Chemical Composition
Not Available
  
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Kyanite and Microlite Chemical Formula
While comparing Kyanite and Microlite 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 Microlite chemical formula.
>- Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Kyanite and Microlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Kyanite and Microlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Kyanite and Microlite Optical Properties during the identification of gemstone. Specific gravity of Kyanite is 5.5 whereas that of Microlite is 5.5.