Labradorite and Fibrolite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.69-2.72
  
3.14-3.25
  
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
  
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
  
Not Available
  
Mohs Hardness
6-6.5
  
6-7
  
Chemical Composition
(Na,Ca)1-2Si3-2O8
  
Al 2SiO 5Arthur Thomas , Gemstones (2009)
  
Labradorite and Fibrolite Chemical Formula
While comparing Labradorite 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 Labradorite and Fibrolite chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
- Chemical formula of Fibrolite- Al 2SiO 5Arthur Thomas , Gemstones (2009)
Labradorite and Fibrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Fibrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Fibrolite Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 3.14-3.25 whereas that of Fibrolite is 3.14-3.25.