Epidote and Fire Opal Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.25-3.50
  
1.97-2.22
  
Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Fibrous
  
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Cleavage
{001} perfect and {100} imperfect
  
Not Available
  
Mohs Hardness
6-7
  
6-6.5
  
Chemical Composition
CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
  
Epidote and Fire Opal Chemical Formula
While comparing Epidote and Fire Opal 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 Epidote and Fire Opal chemical formula.
- Chemical formula of Epidote- CaAl 2(Fe3+ ,Al)Si 3O 12(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Fire Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001) More from other references
Epidote and Fire Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Epidote and Fire Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Epidote and Fire Opal Optical Properties during the identification of gemstone. Specific gravity of Epidote is 1.97-2.22 whereas that of Fire Opal is 1.97-2.22.