Hercynite and Watermelon Tourmaline Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.39
  
2.90-3.40
  
Fracture
ConchoidalGemdat.org, Uneven
  
Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)
  
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Not Available
  
Mohs Hardness
7.5-8
  
7-7.5
  
Chemical Composition
Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
  
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
  
Hercynite and Watermelon Tourmaline Chemical Formula
While comparing Hercynite and Watermelon Tourmaline 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 Watermelon Tourmaline chemical formula.
- Chemical formula of Hercynite- Fe2+ Al 2O 4Gemdat.org , Management Team (2012)
- Chemical formula of Watermelon Tourmaline- Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
Hercynite and Watermelon Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hercynite and Watermelon Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hercynite and Watermelon Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Hercynite is 2.90-3.40 whereas that of Watermelon Tourmaline is 2.90-3.40.