Zircon and Amethyst Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
insoluble
  
insoluble in common solvents
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.93-4.73
  
2.65
  
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{110} and {111}
  
Indiscernible
  
Mohs Hardness
7.5
  
7
  
Chemical Composition
ZrSiO4
  
SiO2
  
Zircon and Amethyst Chemical Formula
While comparing Zircon and Amethyst 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 Amethyst chemical formula.
- Chemical formula of Zircon- ZrSiO4
- Chemical formula of Amethyst- SiO2
Zircon and Amethyst Specific Gravity
Another important criteria for qualitative analysis of gemstones is Zircon and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Zircon and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Zircon is 2.65 whereas that of Amethyst is 2.65.