Shigaite and Fuchsite Physical Properties
Tenacity
Moderately flexible
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.32
  
2.77-2.88
  
Fracture
Flexible Flexible fragments.
  
Uneven
  
Cleavage
Perfect on {0001}
  
Perfect basal
  
Mohs Hardness
2
  
2.5
  
Chemical Composition
Not Available
  
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
  
Shigaite and Fuchsite Chemical Formula
While comparing Shigaite and Fuchsite 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 Fuchsite chemical formula.
>- Chemical formula of Fuchsite- K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Shigaite and Fuchsite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Shigaite and Fuchsite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Fuchsite Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 2.77-2.88 whereas that of Fuchsite is 2.77-2.88.