Fayalite and Beryllonite Physical Properties
Tenacity
Not Available
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
4.392
  
2.79-2.87
  
Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
  
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
{010} moderate, {100} imperfect
  
{010} perfect; {100} good, interrupted; {101} indistinct; {001} in traces
  
Mohs Hardness
6.5-7
  
5.5-6
  
Chemical Composition
Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
  
NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Fayalite and Beryllonite Chemical Formula
While comparing Fayalite and Beryllonite 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 Fayalite and Beryllonite chemical formula.
- Chemical formula of Fayalite- Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Beryllonite- NaBePO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fayalite and Beryllonite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Fayalite and Beryllonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fayalite and Beryllonite Optical Properties during the identification of gemstone. Specific gravity of Fayalite is 2.79-2.87 whereas that of Beryllonite is 2.79-2.87.