Dravite and Fibrolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.03-3.18
  
3.14-3.25
  
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
{???} Indistinct
  
Not Available
  
Mohs Hardness
7-7.5
  
6-7
  
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
  
Al 2SiO 5Arthur Thomas , Gemstones (2009)
  
Dravite and Fibrolite Chemical Formula
While comparing Dravite and Fibrolite 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 Dravite and Fibrolite chemical formula.
- Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
- Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)
Dravite and Fibrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Dravite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Dravite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.