Hauyne and Hercynite Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Gelatinises in acids
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.4-2.5
  
4.39
  
Fracture
Uneven, Conchoidal, Brittle
  
ConchoidalGemdat.org, Uneven
  
Cleavage
Distinct on {110}
  
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Mohs Hardness
5-6
  
7.5-8
  
Chemical Composition
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
  
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
Hauyne and Hercynite Chemical Formula
While comparing Hauyne and Hercynite 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 Hauyne and Hercynite chemical formula.
- Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
Hauyne and Hercynite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hauyne and Hercynite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hauyne and Hercynite Optical Properties during the identification of gemstone. Specific gravity of Hauyne is 4.39 whereas that of Hercynite is 4.39.