Vivianite and Watermelon Tourmaline Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.64-2.70
  
2.90-3.40
  
Fracture
(e.g. graphite).
  
Uneven, Conchoidal, Uneven, Irregular, Conchoidal, Management Team (2012)
  
Cleavage
{010} Perfect
  
Not Available
  
Mohs Hardness
Not Available
  
7-7.5
  
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
  
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.
  
Vivianite and Watermelon Tourmaline Chemical Formula
While comparing Vivianite 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 Vivianite and Watermelon Tourmaline chemical formula.
- Chemical formula of Vivianite- Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
- 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.
Vivianite and Watermelon Tourmaline Specific Gravity
Another important criteria for qualitative analysis of gemstones is Vivianite and Watermelon Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Vivianite and Watermelon Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Vivianite is 2.90-3.40 whereas that of Watermelon Tourmaline is 2.90-3.40.