Amethyst and Augite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
insoluble in common solvents
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65
  
3.19-3.56
  
Fracture
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Cleavage
Indiscernible
  
{110} Perfect, {010} Indistinct
  
Mohs Hardness
7
  
5.5-6
  
Chemical Composition
SiO2
  
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
  
Amethyst and Augite Chemical Formula
While comparing Amethyst and Augite 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 Augite chemical formula.
- Chemical formula of Amethyst- SiO2
- Chemical formula of Augite- (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Amethyst and Augite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Amethyst and Augite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Amethyst and Augite Optical Properties during the identification of gemstone. Specific gravity of Amethyst is 3.19-3.56 whereas that of Augite is 3.19-3.56.