Ajoite and Amethyst Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Decomposed by acids
  
insoluble in common solvents
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.96
  
2.65
  
Fracture
Not Available
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
Perfect on {010}
  
Indiscernible
  
Mohs Hardness
5
  
7
  
Chemical Composition
(K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
  
SiO2
  
Ajoite and Amethyst Chemical Formula
While comparing Ajoite 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 Ajoite and Amethyst chemical formula.
- Chemical formula of Ajoite- (K,Na)3Cu20Al3Si29O76(OH)16•~8(H2O)
- Chemical formula of Amethyst- SiO2
Ajoite and Amethyst Specific Gravity
Another important criteria for qualitative analysis of gemstones is Ajoite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ajoite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Ajoite is 2.65 whereas that of Amethyst is 2.65.