Hercynite and Gahnospinel Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.39
  
3.65-4.55
  
Fracture
ConchoidalGemdat.org, Uneven
  
ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
None, but may exhibit slight parting
  
Mohs Hardness
7.5-8
  
7.5-8
  
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
  
Hercynite and Gahnospinel Chemical Formula
While comparing Hercynite and Gahnospinel 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 Gahnospinel chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Hercynite and Gahnospinel Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.