Onyx and Microlite Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
5.5
  
Fracture
Not Available
  
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
  
Cleavage
Indiscernible
  
{111} Indistinct, {111} Indistinct, {111} Indistinct
  
Mohs Hardness
6.5-7
  
5-5.5
  
Chemical Composition
SiO2
  
(Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Onyx and Microlite Chemical Formula
While comparing Onyx and Microlite 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 Onyx and Microlite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Microlite- (Ca,Na) 2Ta 2O 6(O,OH,F)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Microlite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Microlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Microlite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 5.5 whereas that of Microlite is 5.5.