Sulphur and Dravite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.05-2.08
  
3.03-3.18
  
Fracture
Not Available
  
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Cleavage
Not Available
  
{???} Indistinct
  
Mohs Hardness
Not Available
  
7-7.5
  
Chemical Composition
SWalter Schumann , Gemstones of the world (2001)
  
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Sulphur and Dravite Chemical Formula
While comparing Sulphur 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 Sulphur and Dravite chemical formula.
- Chemical formula of Sulphur- SWalter Schumann , Gemstones of the world (2001)
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Sulphur and Dravite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sulphur and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sulphur and Dravite Optical Properties during the identification of gemstone. Specific gravity of Sulphur is 3.03-3.18 whereas that of Dravite is 3.03-3.18.