Brookite and Vishnevite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.87-4.14
  
Not Available
  
Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Brittle, Uneven
  
Cleavage
Poor on {120}, in traces on {001}
  
Perfect
  
Mohs Hardness
5.5-6
  
5-6
  
Chemical Composition
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Not Available
  
Brookite and Vishnevite Chemical Formula
While comparing Brookite and Vishnevite 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 Brookite and Vishnevite chemical formula.
- Chemical formula of Brookite- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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Brookite and Vishnevite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Brookite and Vishnevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brookite and Vishnevite Optical Properties during the identification of gemstone. Specific gravity of Brookite is Not Available whereas that of Vishnevite is Not Available.