Zircon and Tanzanite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
3.93-4.73
  
3.35
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{110} and {111}
  
Perfect {010}, imperfect {100}
  
Mohs Hardness
7.5
  
6.5-7
  
Chemical Composition
ZrSiO4
  
Ca2Al3(SiO4)3(OH)
  
Zircon and Tanzanite Chemical Formula
While comparing Zircon and Tanzanite 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 Zircon and Tanzanite chemical formula.
- Chemical formula of Zircon- ZrSiO4
- Chemical formula of Tanzanite- Ca2Al3(SiO4)3(OH)
Zircon and Tanzanite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zircon and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Zircon is 3.35 whereas that of Tanzanite is 3.35.