Painite and Labradorite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.00-4.03
  
2.69-2.72
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Uneven, Conchoidal, Gems, Sixth Edition (2006)
  
Cleavage
Not Available
  
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
  
Mohs Hardness
7.5-8
  
6-6.5
  
Chemical Composition
CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Na,Ca)1-2Si3-2O8
  
Painite and Labradorite Chemical Formula
While comparing Painite and Labradorite 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 Painite and Labradorite chemical formula.
- Chemical formula of Painite- CaZrBAl 9O 18Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Labradorite- (Na,Ca)1-2Si3-2O8
Painite and Labradorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Painite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Painite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Painite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.