Hercynite and Emerald Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
4.39
  
2.67-2.78
  
Fracture
ConchoidalGemdat.org, Uneven
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Imperfect on the [0001]
  
Mohs Hardness
7.5-8
  
7.5-8
  
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
Be3Al2SiO6
  
Hercynite and Emerald Chemical Formula
While comparing Hercynite and Emerald 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 Hercynite and Emerald chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Emerald- Be3Al2SiO6
Hercynite and Emerald Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.