Amethyst and Phosgenite Physical Properties
Tenacity
Not Available
  
Sectile
  
Solubility
insoluble in common solvents
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
6.13
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
  
Cleavage
Indiscernible
  
Distinct on {001} and {110}, indistinct on {100}
  
Mohs Hardness
7
  
2-3
  
Chemical Composition
SiO2
  
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Amethyst and Phosgenite Chemical Formula
While comparing Amethyst and Phosgenite 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 Amethyst and Phosgenite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Phosgenite- Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Amethyst and Phosgenite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Phosgenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Phosgenite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 6.13 whereas that of Phosgenite is 6.13.