Amethyst and Serandite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble in common solvents
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
3.52
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001)
  
Cleavage
Indiscernible
  
{100} Perfect, {001} Perfect
  
Mohs Hardness
7
  
5-5.5
  
Chemical Composition
SiO2
  
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Amethyst and Serandite Chemical Formula
While comparing Amethyst and Serandite 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 Serandite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Serandite- Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael OâDonoghue , Gems, Sixth Edition (2006)
Amethyst and Serandite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Serandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Serandite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.52 whereas that of Serandite is 3.52.