Amethyst and Sogdianite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble in common solvents
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
2.77-2.90
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Not Available
  
Cleavage
Indiscernible
  
{0001} Perfect
  
Mohs Hardness
7
  
7
  
Chemical Composition
SiO2
  
(K,Na) 2(Li,Fe) 3(Zr,Ti,Fe)Si 12O 30Ulrich Henn and Claudio C.
  
Amethyst and Sogdianite Chemical Formula
While comparing Amethyst and Sogdianite 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 Sogdianite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Sogdianite- (K,Na) 2(Li,Fe) 3(Zr,Ti,Fe)Si 12O 30Ulrich Henn and Claudio C.
Amethyst and Sogdianite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Sogdianite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Sogdianite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 2.77-2.90 whereas that of Sogdianite is 2.77-2.90.