Shigaite and Fluorite Physical Properties
Tenacity
Moderately flexible
  
Brittle
  
Solubility
Not Available
  
slightly water soluble and in hot hydrochloric acid
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.32
  
3.00-3.25
  
Fracture
Flexible Flexible fragments.
  
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Cleavage
Perfect on {0001}
  
Octahedral, perfect on {111}, parting on {011}
  
Mohs Hardness
2
  
4
  
Chemical Composition
Not Available
  
CaF2
  
Shigaite and Fluorite Chemical Formula
While comparing Shigaite and Fluorite 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 Fluorite chemical formula.
>- Chemical formula of Fluorite- CaF2
Shigaite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Shigaite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Shigaite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Shigaite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.