Andesine and Sard Physical Properties
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65-2.69
  
2.58-2.63
  
Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
  
Cleavage
Perfect on {001}, good on {010}
  
Not Available
  
Mohs Hardness
6-6.5
  
6.5-7
  
Chemical Composition
(Na,Ca)Al1-2Si3-2O8
  
SiO 2Ulrich Henn and Claudio C.
  
Andesine and Sard Chemical Formula
While comparing Andesine and Sard 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 Andesine and Sard chemical formula.
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
- Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Andesine and Sard Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andesine and Sard Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andesine and Sard Optical Properties during the identification of gemstone. Specific gravity of Andesine is 2.58-2.63 whereas that of Sard is 2.58-2.63.