Onyx and Enstatite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.55-2.70
  
3.20-3.25
  
Fracture
Not Available
  
Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic
  
Cleavage
Indiscernible
  
Good/distinct on [210]
  
Mohs Hardness
6.5-7
  
5.5
  
Chemical Composition
SiO2
  
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Onyx and Enstatite Chemical Formula
While comparing Onyx and Enstatite 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 Enstatite chemical formula.
- Chemical formula of Onyx- SiO2
- Chemical formula of Enstatite- Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Onyx and Enstatite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Onyx and Enstatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Onyx and Enstatite Optical Properties during the identification of gemstone. Specific gravity of Onyx is 3.20-3.25 whereas that of Enstatite is 3.20-3.25.