Hureaulite and Amethyst Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
insoluble in common solvents
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.19
  
2.65
  
Fracture
Brittle, Uneven
  
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{???} Distinct
  
Indiscernible
  
Mohs Hardness
3.5
  
7
  
Chemical Composition
Mn2+5(PO 4) 2(PO 3OH) 2 · 4H 2O)Michael OâDonoghue , Gems, Sixth Edition (2006)
  
SiO2
  
Hureaulite and Amethyst Chemical Formula
While comparing Hureaulite 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 Hureaulite and Amethyst chemical formula.
- Chemical formula of Hureaulite- Mn2+5(PO 4) 2(PO 3OH) 2 · 4H 2O)Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Amethyst- SiO2
Hureaulite and Amethyst Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hureaulite and Amethyst Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hureaulite and Amethyst Optical Properties during the identification of gemstone. Specific gravity of Hureaulite is 2.65 whereas that of Amethyst is 2.65.