Shigaite and Papagoite Physical Properties
Tenacity
Moderately flexible
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.32
  
3.25
  
Fracture
Flexible Flexible fragments.
  
Brittle, Metallic
  
Cleavage
Perfect on {0001}
  
Imperfect in one direction
  
Mohs Hardness
2
  
5-5.5
  
Chemical Composition
Not Available
  
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Shigaite and Papagoite Chemical Formula
While comparing Shigaite and Papagoite 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 Shigaite and Papagoite chemical formula.
>- Chemical formula of Papagoite- CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Shigaite and Papagoite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Shigaite and Papagoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Papagoite Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 3.25 whereas that of Papagoite is 3.25.