Microlite and Common Opal Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
5.5
  
1.98-2.50
  
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Conchoidal, Conchoidal, Gemstones of the world (2001)
  
Cleavage
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Not Available
  
Mohs Hardness
5-5.5
  
5.5-6.5
  
Chemical Composition
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
  
Microlite and Common Opal Chemical Formula
While comparing Microlite and Common 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 Microlite and Common Opal chemical formula.
- Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
- Chemical formula of Common Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
Microlite and Common Opal Specific Gravity
Another important criteria for qualitative analysis of gemstones is Microlite and Common Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Microlite and Common Opal Optical Properties during the identification of gemstone. Specific gravity of Microlite is 1.98-2.50 whereas that of Common Opal is 1.98-2.50.