Hiddenite and Dravite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.15-3.21
  
3.03-3.18
  
Fracture
Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)
  
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
1,2 prismatic
  
{???} Indistinct
  
Mohs Hardness
6-7
  
7-7.5
  
Chemical Composition
LiAlSi2O6
  
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Hiddenite and Dravite Chemical Formula
While comparing Hiddenite and Dravite 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 Hiddenite and Dravite chemical formula.
- Chemical formula of Hiddenite- LiAlSi2O6
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Hiddenite and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Hiddenite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hiddenite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Hiddenite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.