Sapphirine and Andesine Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.40-3.58
  
2.65-2.69
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Uneven
  
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Cleavage
{010} Perfect
  
Perfect on {001}, good on {010}
  
Mohs Hardness
7.5
  
6-6.5
  
Chemical Composition
(Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
(Na,Ca)Al1-2Si3-2O8
  
Sapphirine and Andesine Chemical Formula
While comparing Sapphirine and Andesine 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 Sapphirine and Andesine chemical formula.
- Chemical formula of Sapphirine- (Al,Mg) 8(Al,Si) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
Sapphirine and Andesine Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sapphirine and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphirine and Andesine Optical Properties during the identification of gemstone. Specific gravity of Sapphirine is 2.65-2.69 whereas that of Andesine is 2.65-2.69.