Hercynite and Jade Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.39
  
2.90-3.38
  
Fracture
ConchoidalGemdat.org, Uneven
  
Gemstones of the world (2001), Difficult, Splintery
  
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
1 or 2,2 prismatic.
  
Mohs Hardness
7.5-8
  
6-7
  
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
  
Hercynite and Jade Chemical Formula
While comparing Hercynite and Jade 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 Jade chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Jade- Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 Jadeite: NaAlSi2O6
Hercynite and Jade Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Jade Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Jade Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.90-3.38 whereas that of Jade is 2.90-3.38.