Andesine and Shigaite Physical Properties
Tenacity
Brittle
  
Moderately flexible
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.65-2.69
  
2.32
  
Fracture
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
  
Flexible Flexible fragments.
  
Cleavage
Perfect on {001}, good on {010}
  
Perfect on {0001}
  
Mohs Hardness
6-6.5
  
2
  
Chemical Composition
(Na,Ca)Al1-2Si3-2O8
  
Not Available
  
Andesine and Shigaite Chemical Formula
While comparing Andesine and Shigaite 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 Shigaite chemical formula.
- Chemical formula of Andesine- (Na,Ca)Al1-2Si3-2O8
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Andesine and Shigaite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Andesine and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Andesine and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Andesine is 2.32 whereas that of Shigaite is 2.32.