Amethyst and Diamond Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble in common solvents
  
Soluble
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
3.50-3.53
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
Cleavage
Indiscernible
  
111 (perfect in four directions)
  
Mohs Hardness
7
  
10
  
Chemical Composition
SiO2
  
C
  
Amethyst and Diamond Chemical Formula
While comparing Amethyst and Diamond 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 Diamond chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Diamond- C
Amethyst and Diamond Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Diamond Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Diamond Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.50-3.53 whereas that of Diamond is 3.50-3.53.