Sphalerite and Fluorite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
slightly water soluble and in hot hydrochloric acid
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.95-4.10
  
3.00-3.25
  
Fracture
UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven
  
Subconchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
  
Cleavage
{110} Perfect, {110} Perfect, {110} Perfect
  
Octahedral, perfect on {111}, parting on {011}
  
Mohs Hardness
3.5-4
  
4
  
Chemical Composition
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
CaF2
  
Sphalerite and Fluorite Chemical Formula
While comparing Sphalerite 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 Sphalerite and Fluorite chemical formula.
- Chemical formula of Sphalerite- (Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fluorite- CaF2
Sphalerite and Fluorite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Sphalerite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sphalerite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Sphalerite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.