Simpsonite and Fibrolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
Not Available
  
3.14-3.25
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
None
  
Not Available
  
Mohs Hardness
7-7.5
  
6-7
  
Chemical Composition
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
  
Al 2SiO 5Arthur Thomas , Gemstones (2009)
  
Simpsonite and Fibrolite Chemical Formula
While comparing Simpsonite 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 Simpsonite and Fibrolite chemical formula.
- Chemical formula of Simpsonite- Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.
- Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)
Simpsonite and Fibrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Simpsonite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Simpsonite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Simpsonite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.