Labradorite and Feldspar Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.69-2.72
  
2.56-2.75
  
Fracture
Uneven, Conchoidal, Gems, Sixth Edition (2006)
  
Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)
  
Cleavage
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
  
two or three
  
Mohs Hardness
6-6.5
  
6-6.5
  
Chemical Composition
(Na,Ca)1-2Si3-2O8
  
Not Available
  
Labradorite and Feldspar Chemical Formula
While comparing Labradorite and Feldspar 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 Feldspar chemical formula.
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
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Labradorite and Feldspar Specific Gravity
Another important criteria for qualitative analysis of gemstones is Labradorite and Feldspar Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Labradorite and Feldspar Optical Properties during the identification of gemstone. Specific gravity of Labradorite is 2.56-2.75 whereas that of Feldspar is 2.56-2.75.