Tourmaline and Vishnevite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.35
  
Not Available
  
Fracture
Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)
  
Brittle, Uneven
  
Cleavage
Indistinct
  
Perfect
  
Mohs Hardness
7-7.5
  
5-6
  
Chemical Composition
Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
  
Not Available
  
Tourmaline and Vishnevite Chemical Formula
While comparing Tourmaline 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 Tourmaline and Vishnevite chemical formula.
- Chemical formula of Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas. See The chemical formula of Tourmaline for details.
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Tourmaline and Vishnevite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Tourmaline and Vishnevite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tourmaline and Vishnevite Optical Properties during the identification of gemstone. Specific gravity of Tourmaline is Not Available whereas that of Vishnevite is Not Available.